did some renaming of main dirs (apps, libs, etc.)

cpp/glicko2.cpp

@@ -0,0 +1,351 @@
+/*
+
+  Copyright (c) 2004 Stephen Waits
+  
+  This software is provided 'as-is', without any express or implied warranty. In
+  no event will the authors be held liable for any damages arising from the use
+  of this software.
+  
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it freely,
+  subject to the following restrictions:
+  
+  1. The origin of this software must not be misrepresented; you must not claim
+     that you wrote the original software. If you use this software in a
+     product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  
+  3. This notice may not be removed or altered from any source distribution.
+
+*/
+
+
+
+#include "glicko2.h"
+
+#include <vector>
+#include <cmath>
+
+
+
+class Glicko2_impl
+{
+public:
+
+	// constructors
+	Glicko2_impl();
+	Glicko2_impl(const Glicko2_impl& rhs);
+
+	// copy assignment
+	Glicko2_impl& operator=(const Glicko2_impl& rhs);
+
+	// destructor
+	virtual ~Glicko2_impl();
+
+	// system constants
+	static const double dvolatility;
+
+	// rating data
+	double rating;
+	double deviation;
+	double volatility;
+
+	// result data (copy of each opponent and results, 0.0, 0.5, or 1.0)
+	std::vector<Glicko2> opponents;
+	std::vector<double>  results;
+
+	// utility functions
+	double g(const double& deviation);
+	double E(const double& rating, const double& rating_opponent, const double& deviation_opponent);
+};
+
+
+
+const double Glicko2_impl::dvolatility = 0.3; // should be [0.3,1.2]
+
+
+
+Glicko2_impl::Glicko2_impl() :
+	rating(0.0),
+	deviation(0.0),
+	volatility(0.0),
+	opponents(),
+	results()
+{
+}
+
+
+
+Glicko2_impl::Glicko2_impl(const Glicko2_impl& rhs) :
+	rating(rhs.rating),
+	deviation(rhs.deviation),
+	volatility(rhs.volatility),
+	opponents(rhs.opponents),
+	results(rhs.results)
+{
+}
+
+
+
+Glicko2_impl& Glicko2_impl::operator=(const Glicko2_impl& rhs)
+{
+	if ( this == &rhs )
+	{
+		return *this;
+	}
+
+	rating     = rhs.rating;
+	deviation  = rhs.deviation;
+	volatility = rhs.volatility;
+	opponents  = rhs.opponents;
+	results    = rhs.results;
+
+	return *this;
+}
+
+
+
+Glicko2_impl::~Glicko2_impl()
+{
+}
+
+
+
+double Glicko2_impl::g(const double& deviation)
+{
+	#define PI_SQUARED (9.86960440108935861883)
+	return 1.0 / (sqrt(1.0 + 3.0 * deviation * deviation / PI_SQUARED));
+}
+
+
+
+double Glicko2_impl::E(const double& rating, const double& rating_opponent, const double& deviation_opponent)
+{
+	return 1.0 / (1.0 + exp(-g(deviation_opponent)*(rating - rating_opponent)));
+}
+
+
+
+
+
+
+Glicko2::Glicko2() :
+	pimpl(0)
+{
+	pimpl = new Glicko2_impl();
+
+	SetRating(1500.0);
+	SetDeviation(350.0);
+	SetVolatility(0.06);
+}
+
+
+
+Glicko2::Glicko2(const Glicko2& rhs) :
+	pimpl(0)
+{
+	pimpl = new Glicko2_impl(*(rhs.pimpl));
+}
+
+
+
+Glicko2::Glicko2(double rating, double deviation, double volatility) :
+	pimpl(0)
+{
+	pimpl = new Glicko2_impl;
+
+	SetRating(rating);
+	SetDeviation(deviation);
+	SetVolatility(volatility);
+}
+
+
+
+Glicko2& Glicko2::operator=(const Glicko2& rhs)
+{
+	if ( this == &rhs )
+	{
+		return *this;
+	}
+
+	*pimpl = *rhs.pimpl;
+
+	return *this;
+}
+
+
+
+Glicko2::~Glicko2()
+{
+	delete pimpl;
+}
+
+
+
+bool Glicko2::operator< (const Glicko2& rhs)
+{
+	return pimpl->rating < rhs.pimpl->rating;
+}
+
+
+
+double Glicko2::GetRating() const
+{
+	return pimpl->rating * 173.7178 + 1500.0;
+}
+
+
+
+double Glicko2::GetDeviation() const
+{
+	return pimpl->deviation * 173.7178;
+}
+
+
+
+double Glicko2::GetVolatility() const
+{
+	return pimpl->volatility;
+}
+
+
+
+void Glicko2::SetRating(double rating)
+{
+	pimpl->rating = (rating - 1500.0) / 173.7178;
+}
+
+
+
+void Glicko2::SetDeviation(double deviation)
+{
+	pimpl->deviation = deviation / 173.7178;
+}
+
+
+
+void Glicko2::SetVolatility(double volatility)
+{
+	pimpl->volatility = volatility;
+}
+
+
+
+
+void Glicko2::ClearResults()
+{
+	pimpl->opponents.clear();
+	pimpl->results.clear();
+}
+
+
+
+void Glicko2::AddResult(const Glicko2& opponent, RESULT result)
+{
+	pimpl->opponents.push_back(opponent);
+
+	switch ( result )
+	{
+		case WIN:
+			pimpl->results.push_back(1.0);
+			break;
+
+		case LOSS:
+			pimpl->results.push_back(0.0);
+			break;
+
+		case DRAW:
+			pimpl->results.push_back(0.5);
+			break;
+	}
+}
+
+
+
+void Glicko2::AddWin(const Glicko2& opponent)
+{
+	AddResult(opponent,WIN);
+}
+
+
+
+void Glicko2::AddLoss(const Glicko2& opponent)
+{
+	AddResult(opponent,LOSS);
+}
+
+
+
+void Glicko2::AddDraw(const Glicko2& opponent)
+{
+	AddResult(opponent,DRAW);
+}
+
+
+
+void Glicko2::Update()
+{
+	// bail if no opponents set
+	if ( pimpl->opponents.size() == 0 )
+	{
+		return;
+	}
+
+	// compute variance
+	double variance = 0.0;
+	for ( unsigned int i=0;i<pimpl->opponents.size();i++ )
+	{
+		double g_i = pimpl->g(pimpl->opponents[i].pimpl->deviation);
+		double E_i = pimpl->E(pimpl->rating,pimpl->opponents[i].pimpl->rating,pimpl->opponents[i].pimpl->deviation);
+		variance  += g_i * g_i * E_i * (1.0 - E_i);
+	}
+	variance = 1.0 / variance;
+
+	// compute delta
+	double delta = 0.0;
+	for ( unsigned int i=0;i<pimpl->opponents.size();i++ )
+	{
+		delta += pimpl->g(pimpl->opponents[i].pimpl->deviation) * (pimpl->results[i] - pimpl->E(pimpl->rating,pimpl->opponents[i].pimpl->rating,pimpl->opponents[i].pimpl->deviation));
+	}
+	delta *= variance;
+
+	// determine new volatility
+	double new_volatility = 0.0;
+	double a              = log(pimpl->volatility*pimpl->volatility);
+	double x              = 0.0;
+	double x_new          = a;
+	while ( abs(x - x_new) > 0.0000001 )
+	{
+		       x     = x_new;
+		double d     = pimpl->deviation*pimpl->deviation + variance + exp(x);
+		double h1    = -(x - a)/(Glicko2_impl::dvolatility*Glicko2_impl::dvolatility) - 0.5*exp(x)/d + 0.5*exp(x)*(delta/d)*(delta/d);
+		double h2    = -1.0/(Glicko2_impl::dvolatility*Glicko2_impl::dvolatility) - 0.5*exp(x)*(pimpl->deviation*pimpl->deviation+variance)/(d*d) + 0.5*(delta*delta)*exp(x)*((pimpl->deviation*pimpl->deviation) + variance - exp(x))/(d*d*d);
+		       x_new = x - h1/h2;
+	}
+	new_volatility = exp(x_new / 2.0);
+
+	// update the rating deviation to the new pre-rating period value
+	double pre_deviation = sqrt( pimpl->deviation*pimpl->deviation + new_volatility*new_volatility );
+
+	// update the rating and deviation
+	double new_deviation = 1.0 / (sqrt( 1.0/(pre_deviation*pre_deviation) + 1.0 / variance));
+	double new_rating    = 0.0;
+	for ( unsigned int i=0;i<pimpl->opponents.size();i++ )
+	{
+		new_rating += pimpl->g(pimpl->opponents[i].pimpl->deviation) * (pimpl->results[i] - pimpl->E(pimpl->rating,pimpl->opponents[i].pimpl->rating,pimpl->opponents[i].pimpl->deviation));
+	}
+	new_rating  = new_rating * new_deviation * new_deviation;
+	new_rating += pimpl->rating;
+
+	// copy new values
+	pimpl->rating     = new_rating;
+	pimpl->deviation  = new_deviation;
+	pimpl->volatility = new_volatility;
+
+	// wipe our result lists
+	ClearResults();
+}
+

cpp/glicko2.h

@@ -0,0 +1,245 @@
+/*
+
+  Copyright (c) 2004 Stephen Waits
+  
+  This software is provided 'as-is', without any express or implied warranty. In
+  no event will the authors be held liable for any damages arising from the use
+  of this software.
+  
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it freely,
+  subject to the following restrictions:
+  
+  1. The origin of this software must not be misrepresented; you must not claim
+     that you wrote the original software. If you use this software in a
+     product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  
+  3. This notice may not be removed or altered from any source distribution.
+
+*/
+
+
+
+#ifndef __glicko2_h__
+#define __glicko2_h__
+
+
+
+class Glicko2_impl;
+
+
+
+/**
+ * Glicko-2 Rating calculator class.
+ * 
+ * This class implements the Glicko-2 rating system algorithm written by 
+ * Professor Mark E. Glickman.  All rating inputs and outputs are Glicko ratings,
+ * but internally everything is converted to and considered Glicko-2 ratings.
+ * 
+ * Glicko-2 is an improvement on the original Glicko, which was, in turn, an
+ * improvement on the ELO system.
+ * 
+ * The Glicko-2 system is specified on http://www.glicko.com/
+ */
+class Glicko2
+{
+public:
+
+
+
+	/**
+	 * Enumeration of possible results.
+	 */
+	enum RESULT
+	{
+		/**
+		 * A win result, internally 1.0.
+		 */
+		WIN,
+
+		/**
+		 * A loss result, internally 0.0.
+		 */
+		LOSS,
+
+		/**
+		 * A draw result, internally 0.5.
+		 */
+		DRAW
+	};
+
+
+
+	/**
+	 * Default constructor.  Initializes to a rating of 1500, a rating deviation 
+	 * of 350, and a volatility of 0.06.
+	 */
+	Glicko2();
+
+	/**
+	 * Copy constructor.
+	 * 
+	 * @param rhs    Object to copy.
+	 */
+	Glicko2(const Glicko2& rhs);
+
+	/**
+	 * Constructor with rating, rating deviation, and volatility specified.
+	 * 
+	 * @param rating     Initial rating.
+	 * @param deviation  Initial rating deviation.
+	 * @param volatility Initial volatility.
+	 */
+	Glicko2(double rating, double deviation, double volatility);
+
+
+
+	/**
+	 * Copy assignment operator.
+	 * 
+	 * @param rhs    Object to copy.
+	 * 
+	 * @return Reference to self after copy assignment.
+	 */
+	Glicko2& operator=(const Glicko2& rhs);
+
+
+
+	/**
+	 * Destructor.
+	 */
+	virtual ~Glicko2();
+
+
+
+	/**
+	 * Less than comparison operator.
+	 * 
+	 * @param rhs    Object to compare against.
+	 * 
+	 * @return true if this object's rating is less than rhs's rating; false otherwise.
+	 */
+	bool operator< (const Glicko2& rhs);
+
+
+
+	/**
+	 * Get the current rating.  This rating is a Glicko rating, not a Glicko2 rating.
+	 * For details, please see http://www.glicko.com/
+	 * 
+	 * @return 
+	 */
+	double GetRating() const;
+
+	/**
+	 * Get the current rating deviation.  This is a Glicko rating deviation, not a 
+	 * Glicko-2 RD.  For details, please see http://www.glicko.com/
+	 * 
+	 * @return 
+	 */
+	double GetDeviation() const;
+
+	/**
+	 * Get the current rating volatility.
+	 * 
+	 * @return 
+	 */
+	double GetVolatility() const;
+
+
+
+	/**
+	 * Set Glicko rating.  Internally this is converted to a Glicko2 rating.
+	 * For details, please see http://www.glicko.com/
+	 * 
+	 * @param rating Rating.
+	 */
+	void SetRating(double rating);
+
+	/**
+	 * Set Glicko rating deviation.  Internally this is converted to a Glicko-2 RD.
+	 * For details, please see http://www.glicko.com/
+	 * 
+	 * @param deviation Rating deviation.
+	 */
+	void SetDeviation(double deviation);
+
+	/**
+	 * Set rating volatility.
+	 * 
+	 * @param volatility Rating volatility.
+	 */
+	void SetVolatility(double volatility);
+
+
+
+	/**
+	 * Clear all results previously added via AddResult(), AddWin(), AddLoss(),
+	 * and/or AddDraw().  This method is called automatically whenever Update()
+	 * is called.
+	 */
+	void ClearResults();
+
+
+
+	/**
+	 * Add a result to this rating.  Note that no calculation is performed until
+	 * Update() is called.
+	 * 
+	 * @param opponent Other player in contest.
+	 * @param result   WIN, LOSS, or DRAW; from the point of view of this player.
+	 */
+	void AddResult(const Glicko2& opponent, RESULT result);
+
+
+
+	/**
+	 * Add a win result to this rating.  Note that no calculation is performed until
+	 * Update() is called.
+	 * 
+	 * @param opponent Other (losing) player in contest.
+	 */
+	void AddWin(const Glicko2& opponent);
+
+	/**
+	 * Add a loss result to this rating.  Note that no calculation is performed until
+	 * Update() is called.
+	 * 
+	 * @param opponent Other (winning) player in contest.
+	 */
+	void AddLoss(const Glicko2& opponent);
+
+	/**
+	 * Add a draw result to this rating.  Note that no calculation is performed until
+	 * Update() is called.
+	 * 
+	 * @param opponent Other (drawing) player in contest.
+	 */
+	void AddDraw(const Glicko2& opponent);
+
+
+
+	/**
+	 * Update rating based on current results list, and clear results.
+	 */
+	void Update();
+
+
+
+private:
+
+	/**
+	 * Private Implementation.
+	 */
+	Glicko2_impl* pimpl;
+
+};
+
+
+
+#endif // __glicko2_h__
+

cpp/main.cpp

@@ -0,0 +1,25 @@
+#include "glicko2.h"
+
+#include <cstdio>
+
+int main()
+{
+	// Glicko-2 Example
+	// calculation from http://www.glicko.com/glicko2.doc/example.html
+
+	Glicko2 A(1500.0, 200.0, 0.06);
+	Glicko2 B(1400.0,  30.0, 0.06);
+	Glicko2 C(1550.0, 100.0, 0.06);
+	Glicko2 D(1700.0, 300.0, 0.06);
+
+	A.AddWin(B);
+	A.AddLoss(C);
+	A.AddResult(D,Glicko2::LOSS); // alternative way to add a result
+
+	A.Update();
+
+	printf("rating = %f, RD = %f\n", A.GetRating(), A.GetDeviation());
+
+	return 0;
+}
+

py/data/amasuperbike-main.xml

@@ -0,0 +1,464 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<ratingdoc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.waits.net/XML/xmlrate.xsd">
+
+	<!-- players -->
+
+	<player><name>Mathew Mladin</name></player>
+	<player><name>Jake P Zemke</name></player>
+	<player><name>Miguel Duhamel</name></player>
+	<player><name>Jack E Pfeifer</name></player>
+	<player><name>Lee Acree</name></player>
+	<player><name>Opie Caylor</name></player>
+	<player><name>Scott Jensen</name></player>
+	<player><name>Eric C Wood</name></player>
+	<player><name>Cory Denton West</name></player>
+	<player><name>John Haner</name></player>
+	<player><name>J J Roetlin</name></player>
+	<player><name>Geoff May</name></player>
+	<player><name>Aaron W Yates</name></player>
+	<player><name>Dean Mizdal</name></player>
+  <player><name>David Bell</name></player>
+	<player><name>Eric Bostrom</name></player>
+	<player><name>Larry Pegram</name></player>
+	<player><name>Ben D Bostrom</name></player>
+	<player><name>Joshua Kurt Hayes</name></player>
+	<player><name>Jason Curtis</name></player>
+	<player><name>Shawn M Higbee</name></player>
+
+
+<!--
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+-->
+
+	<!-- Daytona -->
+	<period>
+		<race>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+		</race>
+	</period>
+
+	<!-- Fontana Race 1 -->
+	<period>
+		<race>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Shawn M Higbee</competitor>
+		</race>
+	</period>
+
+	<!-- Fontana Race 2 -->
+	<period>
+		<race>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Opie Caylor</competitor>
+		</race>
+	</period>
+
+	<!-- Sears Race 1 -->
+	<period>
+		<race>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Eric C Wood</competitor>
+		</race>
+	</period>
+
+	<!-- Sears Race 2 -->
+	<period>
+		<race>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Opie Caylor</competitor>
+		</race>
+	</period>
+
+	<!-- Barber Race 1 -->
+	<period>
+		<race>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Ben D Bostrom</competitor>
+		</race>
+	</period>
+
+	<!-- Barber Race 2 -->
+	<period>
+		<race>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Scott Jensen</competitor>
+		</race>
+	</period>
+
+	<!-- Pikes Peak -->
+	<period>
+		<race>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Jason Curtis</competitor>
+		</race>
+	</period>
+
+	<!-- Road America Race 1 -->
+	<period>
+		<race>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Lee Acree</competitor>
+		</race>
+	</period>
+
+	<!-- Road America Race 2 -->
+	<period>
+		<race>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>David Bell</competitor>
+		</race>
+	</period>
+
+	<!-- Brainerd -->
+	<period>
+		<race>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+		</race>
+	</period>
+
+	<!-- Laguna Seca -->
+	<period>
+		<race>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+		</race>
+	</period>
+
+	<!-- Mid Ohio Race 1 -->
+	<period>
+		<race>
+                    <competitor>Mathew Mladin</competitor>
+                    <competitor>Miguel Duhamel</competitor>
+                    <competitor>Aaron W Yates</competitor>
+                    <competitor>Ben D Bostrom</competitor>
+                    <competitor>Jake P Zemke</competitor>
+                    <competitor>Joshua Kurt Hayes</competitor>
+                    <competitor>Eric Bostrom</competitor>
+                    <competitor>John Haner</competitor>
+                    <competitor>Larry Pegram</competitor>
+                    <competitor>Shawn M Higbee</competitor>
+                    <competitor>Geoff May</competitor>
+                    <competitor>Eric C Wood</competitor>
+                    <competitor>Cory Denton West</competitor>
+                    <competitor>Lee Acree</competitor>
+                    <competitor>Opie Caylor</competitor>
+                    <competitor>J J Roetlin</competitor>
+                    <competitor>Jason Curtis</competitor>
+                    <competitor>Scott Jensen</competitor>
+                    <competitor>Dean Mizdal</competitor>
+                    <competitor>Jack E Pfeifer</competitor>
+		</race>
+	</period>
+
+	<!-- Mid Ohio Race 2 -->
+	<period>
+		<race>
+                    <competitor>Jake P Zemke</competitor>
+                    <competitor>Ben D Bostrom</competitor>
+                    <competitor>Mathew Mladin</competitor>
+                    <competitor>Aaron W Yates</competitor>
+                    <competitor>Joshua Kurt Hayes</competitor>
+                    <competitor>Eric Bostrom</competitor>
+                    <competitor>Larry Pegram</competitor>
+                    <competitor>Eric C Wood</competitor>
+                    <competitor>John Haner</competitor>
+                    <competitor>Lee Acree</competitor>
+                    <competitor>Shawn M Higbee</competitor>
+                    <competitor>Geoff May</competitor>
+                    <competitor>Cory Denton West</competitor>
+                    <competitor>J J Roetlin</competitor>
+                    <competitor>Scott Jensen</competitor>
+                    <competitor>Opie Caylor</competitor>
+                    <competitor>Jason Curtis</competitor>
+                    <competitor>Dean Mizdal</competitor>
+                    <competitor>Jack E Pfeifer</competitor>
+                    <competitor>Miguel Duhamel</competitor>
+		</race>
+	</period>
+
+	<!-- Road Atlanta Race 1 -->
+	<period>
+		<race>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Jason Curtis</competitor>
+		</race>
+	</period>
+
+	<!-- Road Atlanta Race 2 -->
+	<period>
+		<race>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Eric Bostrom</competitor>
+		</race>
+	</period>
+
+</ratingdoc>

py/data/amasuperbike.xml

@@ -0,0 +1,729 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<ratingdoc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.waits.net/XML/xmlrate.xsd">
+
+	<!-- players -->
+
+	<player><name>Mathew Mladin</name></player>
+	<player><name>Jake P Zemke</name></player>
+	<player><name>Miguel Duhamel</name></player>
+	<player><name>Jack E Pfeifer</name></player>
+	<player><name>Lee Acree</name></player>
+	<player><name>Ricky Orlando</name></player>
+	<player><name>Pascal Picotte</name></player>
+	<player><name>Opie Caylor</name></player>
+	<player><name>Scott Jensen</name></player>
+	<player><name>Eric C Wood</name></player>
+	<player><name>Marco Martinez</name></player>
+	<player><name>C R Gittere</name></player>
+	<player><name>Cory Denton West</name></player>
+	<player><name>Frank Trombino</name></player>
+	<player><name>John Haner</name></player>
+	<player><name>J J Roetlin</name></player>
+	<player><name>Geoff May</name></player>
+	<player><name>David Bell</name></player>
+	<player><name>Roger Bell</name></player>
+	<player><name>Craig Fitzpatrick</name></player>
+	<player><name>Byron Barbour</name></player>
+	<player><name>Rick R Narup</name></player>
+	<player><name>Aaron W Yates</name></player>
+	<player><name>Dean Mizdal</name></player>
+	<player><name>Anthony W Fania</name></player>
+	<player><name>Eric Bostrom</name></player>
+	<player><name>Larry Pegram</name></player>
+	<player><name>K Mark Crozier</name></player>
+	<player><name>Mike Sullivan</name></player>
+	<player><name>Ben D Bostrom</name></player>
+	<player><name>Ron McGill</name></player>
+	<player><name>Jeffrey S Tigert</name></player>
+	<player><name>Joshua Kurt Hayes</name></player>
+	<player><name>Michael A Hanley</name></player>
+	<player><name>Scott E Carpenter</name></player>
+	<player><name>Jordan M Szoke</name></player>
+	<player><name>John Dugan</name></player>
+	<player><name>Steve Crevier</name></player>
+	<player><name>Martin Craggill</name></player>
+	<player><name>Clint McBain</name></player>
+	<player><name>Jeremy Toye</name></player>
+	<player><name>Chris Siglin</name></player>
+	<player><name>Robert M Christman</name></player>
+	<player><name>Jason Curtis</name></player>
+	<player><name>Mark Ledesma</name></player>
+	<player><name>Garry Combs</name></player>
+	<player><name>Kim Nakashima</name></player>
+	<player><name>Corey Sarros</name></player>
+	<player><name>Kevin Hanson</name></player>
+	<player><name>Jeremiah J Johnson</name></player>
+	<player><name>Jeff Williams</name></player>
+	<player><name>Rob Mesa</name></player>
+	<player><name>Craig Connell</name></player>
+	<player><name>Shawn M Higbee</name></player>
+	<player><name>A J Ammann</name></player>
+	<player><name>David Stanton</name></player>
+	<player><name>Ken Hill</name></player>
+	<player><name>Mark C Foster</name></player>
+	<player><name>Brien K Whitlock</name></player>
+	<player><name>James Randolph</name></player>
+	<player><name>James J King</name></player>
+	<player><name>Andrew Nelson</name></player>
+	<player><name>John Scott Wilson</name></player>
+	<player><name>Thomas G Montano</name></player>
+	<player><name>Kenyon Kluge</name></player>
+	<player><name>Mike Krynock</name></player>
+	<player><name>Michael J Sanchez</name></player>
+	<player><name>John R Jacobi</name></player>
+	<player><name>Lenny Beckman</name></player>
+	<player><name>Michael A Smith</name></player>
+	<player><name>Christian Pistoni</name></player>
+	<player><name>Daniel L Turner</name></player>
+	<player><name>Darren Luck</name></player>
+	<player><name>Andrew J Deatherage</name></player>
+	<player><name>Reuben Frankenfield</name></player>
+	<player><name>Chris M Voelker</name></player>
+	<player><name>Brian Boyd</name></player>
+	<player><name>James Kerker</name></player>
+	<player><name>Paul Ducato</name></player>
+	<player><name>Dave Ebben</name></player>
+	<player><name>David Weber</name></player>
+	<player><name>Jacob L Holden</name></player>
+	<player><name>Jason R Pridmore</name></player>
+	<player><name>Mark Vandal</name></player>
+	<player><name>Roger M Hendricks</name></player>
+	<player><name>Greg J Fryer</name></player>
+	<player><name>Corey D Eaton</name></player>
+	<player><name>Dave Kunzelman</name></player>
+
+	<player><name>Fritz Kling</name></player>
+	<player><name>Jeff Muskopf</name></player>
+	<player><name>Kevin W Pate</name></player>
+	<player><name>Chuck Allen</name></player>
+	<player><name>Charles Sorensen</name></player>
+	<player><name>Jesse A Janisch</name></player>
+
+<!--
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+	<player><name></name></player>
+-->
+
+	<!-- Daytona -->
+	<period>
+		<race>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Ricky Orlando</competitor>
+			<competitor>Pascal Picotte</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Marco Martinez</competitor>
+			<competitor>C R Gittere</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Frank Trombino</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Roger Bell</competitor>
+			<competitor>Craig Fitzpatrick</competitor>
+			<competitor>Byron Barbour</competitor>
+			<competitor>Rick R Narup</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Anthony W Fania</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>K Mark Crozier</competitor>
+			<competitor>Mike Sullivan</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Ron McGill</competitor>
+			<competitor>Jeffrey S Tigert</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Michael A Hanley</competitor>
+			<competitor>Scott E Carpenter</competitor>
+			<competitor>Jordan M Szoke</competitor>
+			<competitor>John Dugan</competitor>
+		</race>
+	</period>
+
+	<!-- Fontana Race 1 -->
+	<period>
+		<race>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Steve Crevier</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Martin Craggill</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Clint McBain</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Jeremy Toye</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Chris Siglin</competitor>
+			<competitor>Robert M Christman</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Mark Ledesma</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Garry Combs</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Kim Nakashima</competitor>
+			<competitor>Corey Sarros</competitor>
+			<competitor>Kevin Hanson</competitor>
+			<competitor>Jeremiah J Johnson</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Jeff Williams</competitor>
+			<competitor>Rob Mesa</competitor>
+			<competitor>Craig Connell</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>A J Ammann</competitor>
+		</race>
+	</period>
+
+	<!-- Fontana Race 2 -->
+	<period>
+		<race>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Steve Crevier</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Jeremy Toye</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Clint McBain</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Jeff Williams</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Rob Mesa</competitor>
+			<competitor>Mark Ledesma</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Corey Sarros</competitor>
+			<competitor>Chris Siglin</competitor>
+			<competitor>Garry Combs</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Jeremiah J Johnson</competitor>
+			<competitor>Kevin Hanson</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Craig Connell</competitor>
+			<competitor>Kim Nakashima</competitor>
+			<competitor>Martin Craggill</competitor>
+			<competitor>Robert M Christman</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>A J Ammann</competitor>
+		</race>
+	</period>
+
+	<!-- Sears Race 1 -->
+	<period>
+		<race>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>David Stanton</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Ken Hill</competitor>
+			<competitor>Clint McBain</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Robert M Christman</competitor>
+			<competitor>Mark C Foster</competitor>
+			<competitor>Brien K Whitlock</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>James Randolph</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Garry Combs</competitor>
+			<competitor>Rob Mesa</competitor>
+			<competitor>Jeff Williams</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Andrew Nelson</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>John Scott Wilson</competitor>
+			<competitor>Jeremiah J Johnson</competitor>
+			<competitor>Steve Crevier</competitor>
+			<competitor>James J King</competitor>
+			<competitor>Kim Nakashima</competitor>
+			<competitor>Chris Siglin</competitor>
+			<competitor>Craig Connell</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Thomas G Montano</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Kenyon Kluge</competitor>
+			<competitor>Kevin Hanson</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Jeremy Toye</competitor>
+			<competitor>Mike Krynock</competitor>
+		</race>
+	</period>
+
+	<!-- Sears Race 2 -->
+	<period>
+		<race>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Steve Crevier</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Clint McBain</competitor>
+			<competitor>Ken Hill</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Robert M Christman</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Thomas G Montano</competitor>
+			<competitor>Brien K Whitlock</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Kim Nakashima</competitor>
+			<competitor>Jeremiah J Johnson</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>John Scott Wilson</competitor>
+			<competitor>Andrew Nelson</competitor>
+			<competitor>Garry Combs</competitor>
+			<competitor>James J King</competitor>
+			<competitor>Kevin Hanson</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Chris Siglin</competitor>
+			<competitor>David Stanton</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>James Randolph</competitor>
+			<competitor>Jeff Williams</competitor>
+			<competitor>Kenyon Kluge</competitor>
+			<competitor>Jeremy Toye</competitor>
+			<competitor>Mark C Foster</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Craig Connell</competitor>
+			<competitor>Rob Mesa</competitor>
+			<competitor>Mike Krynock</competitor>
+		</race>
+	</period>
+
+	<!-- Barber Race 1 -->
+	<period>
+		<race>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Jeremy Toye</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Byron Barbour</competitor>
+			<competitor>Michael J Sanchez</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Mike Sullivan</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>John R Jacobi</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Marco Martinez</competitor>
+			<competitor>Mark Ledesma</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Scott E Carpenter</competitor>
+			<competitor>Lenny Beckman</competitor>
+			<competitor>C R Gittere</competitor>
+			<competitor>Kevin Hanson</competitor>
+			<competitor>Rick R Narup</competitor>
+			<competitor>Michael A Smith</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Jeremiah J Johnson</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Christian Pistoni</competitor>
+		</race>
+	</period>
+
+	<!-- Barber Race 2 -->
+	<period>
+		<race>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Jeremy Toye</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Michael A Smith</competitor>
+			<competitor>Byron Barbour</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Mike Sullivan</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Marco Martinez</competitor>
+			<competitor>Mark Ledesma</competitor>
+			<competitor>John R Jacobi</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Lenny Beckman</competitor>
+			<competitor>Scott E Carpenter</competitor>
+			<competitor>Kevin Hanson</competitor>
+			<competitor>Rick R Narup</competitor>
+			<competitor>C R Gittere</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Jeremiah J Johnson</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Michael J Sanchez</competitor>
+			<competitor>Christian Pistoni</competitor>
+		</race>
+	</period>
+
+	<!-- Pikes Peak -->
+	<period>
+		<race>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Ricky Orlando</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Daniel L Turner</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Darren Luck</competitor>
+			<competitor>Mike Sullivan</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Robert M Christman</competitor>
+			<competitor>Mark Ledesma</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Lenny Beckman</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Kevin Hanson</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Jason Curtis</competitor>
+		</race>
+	</period>
+
+	<!-- Road America Race 1 -->
+	<period>
+		<race>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Steve Crevier</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Jeremy Toye</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Andrew J Deatherage</competitor>
+			<competitor>Pascal Picotte</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Roger Bell</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>John R Jacobi</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Mike Sullivan</competitor>
+			<competitor>Reuben Frankenfield</competitor>
+			<competitor>Chris M Voelker</competitor>
+			<competitor>Robert M Christman</competitor>
+			<competitor>C R Gittere</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Jeremiah J Johnson</competitor>
+			<competitor>Brian Boyd</competitor>
+			<competitor>James Kerker</competitor>
+			<competitor>Lenny Beckman</competitor>
+			<competitor>Kevin Hanson</competitor>
+			<competitor>Paul Ducato</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Dave Ebben</competitor>
+			<competitor>David Weber</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>Marco Martinez</competitor>
+			<competitor>Jacob L Holden</competitor>
+			<competitor>Jason R Pridmore</competitor>
+		</race>
+	</period>
+
+	<!-- Road America Race 2 -->
+	<period>
+		<race>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Steve Crevier</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Jeremy Toye</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Andrew J Deatherage</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>David Weber</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Reuben Frankenfield</competitor>
+			<competitor>John R Jacobi</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Chris M Voelker</competitor>
+			<competitor>Robert M Christman</competitor>
+			<competitor>C R Gittere</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Kevin Hanson</competitor>
+			<competitor>Dave Ebben</competitor>
+			<competitor>Lenny Beckman</competitor>
+			<competitor>Brian Boyd</competitor>
+			<competitor>James Kerker</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Roger Bell</competitor>
+			<competitor>Jacob L Holden</competitor>
+			<competitor>Pascal Picotte</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Mike Sullivan</competitor>
+			<competitor>Jeremiah J Johnson</competitor>
+			<competitor>Jason R Pridmore</competitor>
+			<competitor>Marco Martinez</competitor>
+			<competitor>Paul Ducato</competitor>
+		</race>
+	</period>
+
+	<!-- Brainerd -->
+	<period>
+		<race>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Pascal Picotte</competitor>
+			<competitor>Jacob L Holden</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Andrew J Deatherage</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Mark Vandal</competitor>
+			<competitor>James Kerker</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Roger M Hendricks</competitor>
+			<competitor>Jeremy Toye</competitor>
+			<competitor>Greg J Fryer</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+			<competitor>Jason R Pridmore</competitor>
+			<competitor>C R Gittere</competitor>
+			<competitor>A J Ammann</competitor>
+		</race>
+	</period>
+
+	<!-- Laguna Seca -->
+	<period>
+		<race>
+			<competitor>Ben D Bostrom</competitor>
+			<competitor>Mathew Mladin</competitor>
+			<competitor>Miguel Duhamel</competitor>
+			<competitor>Aaron W Yates</competitor>
+			<competitor>Eric Bostrom</competitor>
+			<competitor>Joshua Kurt Hayes</competitor>
+			<competitor>Jake P Zemke</competitor>
+			<competitor>Jacob L Holden</competitor>
+			<competitor>Larry Pegram</competitor>
+			<competitor>Geoff May</competitor>
+			<competitor>Jeremy Toye</competitor>
+			<competitor>John Haner</competitor>
+			<competitor>Eric C Wood</competitor>
+			<competitor>Shawn M Higbee</competitor>
+			<competitor>Martin Craggill</competitor>
+			<competitor>Chris Siglin</competitor>
+			<competitor>Lee Acree</competitor>
+			<competitor>J J Roetlin</competitor>
+			<competitor>Mike Sullivan</competitor>
+			<competitor>Mark Ledesma</competitor>
+			<competitor>Ken Hill</competitor>
+			<competitor>Marco Martinez</competitor>
+			<competitor>Ricky Orlando</competitor>
+			<competitor>Scott Jensen</competitor>
+			<competitor>Opie Caylor</competitor>
+			<competitor>Thomas G Montano</competitor>
+			<competitor>Brien K Whitlock</competitor>
+			<competitor>Kim Nakashima</competitor>
+			<competitor>Corey D Eaton</competitor>
+			<competitor>Rob Mesa</competitor>
+			<competitor>Dave Kunzelman</competitor>
+			<competitor>Garry Combs</competitor>
+			<competitor>Cory Denton West</competitor>
+			<competitor>Jeffrey S Tigert</competitor>
+			<competitor>David Bell</competitor>
+			<competitor>Jason Curtis</competitor>
+			<competitor>Dean Mizdal</competitor>
+			<competitor>Jack E Pfeifer</competitor>
+		</race>
+	</period>
+
+	<!-- Mid Ohio Race 1 -->
+	<period>
+		<race>
+                    <competitor>Mathew Mladin</competitor>
+                    <competitor>Miguel Duhamel</competitor>
+                    <competitor>Aaron W Yates</competitor>
+                    <competitor>Ben D Bostrom</competitor>
+                    <competitor>Jake P Zemke</competitor>
+                    <competitor>Joshua Kurt Hayes</competitor>
+                    <competitor>Eric Bostrom</competitor>
+                    <competitor>Jacob L Holden</competitor>
+                    <competitor>John Haner</competitor>
+                    <competitor>Larry Pegram</competitor>
+                    <competitor>Shawn M Higbee</competitor>
+                    <competitor>Geoff May</competitor>
+                    <competitor>Eric C Wood</competitor>
+                    <competitor>Martin Craggill</competitor>
+                    <competitor>Cory Denton West</competitor>
+                    <competitor>Lee Acree</competitor>
+                    <competitor>Opie Caylor</competitor>
+                    <competitor>J J Roetlin</competitor>
+                    <competitor>Andrew J Deatherage</competitor>
+                    <competitor>Jason Curtis</competitor>
+                    <competitor>Scott Jensen</competitor>
+                    <competitor>Dean Mizdal</competitor>
+                    <competitor>Fritz Kling</competitor>
+                    <competitor>Paul Ducato</competitor>
+                    <competitor>Byron Barbour</competitor>
+                    <competitor>Jack E Pfeifer</competitor>
+                    <competitor>Jeff Muskopf</competitor>
+                    <competitor>Kevin W Pate</competitor>
+                    <competitor>Roger Bell</competitor>
+                    <competitor>Chuck Allen</competitor>
+                    <competitor>C R Gittere</competitor>
+                    <competitor>Charles Sorensen</competitor>
+                    <competitor>David Weber</competitor>
+                    <competitor>James Kerker</competitor>
+                    <competitor>Jesse A Janisch</competitor>
+                    <competitor>John R Jacobi</competitor>
+                    <competitor>Jason R Pridmore</competitor>
+		</race>
+	</period>
+
+	<!-- Mid Ohio Race 2 -->
+	<period>
+		<race>
+                    <competitor>Jake P Zemke</competitor>
+                    <competitor>Ben D Bostrom</competitor>
+                    <competitor>Mathew Mladin</competitor>
+                    <competitor>Aaron W Yates</competitor>
+                    <competitor>Joshua Kurt Hayes</competitor>
+                    <competitor>Jacob L Holden</competitor>
+                    <competitor>Eric Bostrom</competitor>
+                    <competitor>Larry Pegram</competitor>
+                    <competitor>Eric C Wood</competitor>
+                    <competitor>John Haner</competitor>
+                    <competitor>Lee Acree</competitor>
+                    <competitor>Shawn M Higbee</competitor>
+                    <competitor>Geoff May</competitor>
+                    <competitor>Andrew J Deatherage</competitor>
+                    <competitor>Cory Denton West</competitor>
+                    <competitor>David Weber</competitor>
+                    <competitor>J J Roetlin</competitor>
+                    <competitor>Jesse A Janisch</competitor>
+                    <competitor>Scott Jensen</competitor>
+                    <competitor>Opie Caylor</competitor>
+                    <competitor>Jason Curtis</competitor>
+                    <competitor>Byron Barbour</competitor>
+                    <competitor>Dean Mizdal</competitor>
+                    <competitor>C R Gittere</competitor>
+                    <competitor>Paul Ducato</competitor>
+                    <competitor>Jeff Muskopf</competitor>
+                    <competitor>Jack E Pfeifer</competitor>
+                    <competitor>Charles Sorensen</competitor>
+                    <competitor>Miguel Duhamel</competitor>
+                    <competitor>Fritz Kling</competitor>
+                    <competitor>Chuck Allen</competitor>
+                    <competitor>James Kerker</competitor>
+                    <competitor>Roger Bell</competitor>
+                    <competitor>Martin Craggill</competitor>
+                    <competitor>John R Jacobi</competitor>
+                    <competitor>Kevin W Pate</competitor>
+                    <competitor>Jason R Pridmore</competitor>
+		</race>
+	</period>
+
+</ratingdoc>

py/data/hockey-1.xml

@@ -0,0 +1,403 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<ratingdoc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.waits.net/XML/xmlrate.xsd">
+
+    <player>
+        <name>penguins</name>
+    </player>
+
+    <player>
+        <name>no ties</name>
+    </player>
+
+    <player>
+        <name>zzyzzx</name>
+    </player>
+
+    <player>
+        <name>spitfires</name>
+    </player>
+
+    <player>
+        <name>red liners</name>
+    </player>
+
+    <player>
+        <name>space monkeys</name>
+    </player>
+
+    <player>
+        <name>phantoms</name>
+    </player>
+
+    <player>
+        <name>jinx</name>
+    </player>
+
+    <player>
+        <name>plug uglys</name>
+    </player>
+
+    <player>
+        <name>shockers</name>
+    </player>
+
+
+    <period>
+        <game>
+            <home>jinx</home>
+            <away>space monkeys</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>zzyzzx</home>
+            <away>no ties</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>plug uglys</home>
+            <away>red liners</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>phantoms</home>
+            <away>penguins</away>
+            <result>loss</result>
+        </game>
+    </period>
+
+    <period>
+        <game>
+            <home>no ties</home>
+            <away>spitfires</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>jinx</home>
+            <away>phantoms</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>space monkeys</home>
+            <away>shockers</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>zzyzzx</home>
+            <away>plug uglys</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>penguins</home>
+            <away>red liners</away>
+            <result>win</result>
+        </game>
+    </period>
+
+    <period>
+        <game>
+            <home>penguins</home>
+            <away>zzyzzx</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>spitfires</home>
+            <away>plug uglys</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>no ties</home>
+            <away>shockers</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>red liners</home>
+            <away>jinx</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>space monkeys</home>
+            <away>phantoms</away>
+            <result>draw</result>
+        </game>
+    </period>
+
+		<period>
+
+			<game>
+				<home>jinx</home>
+				<away>zzyzzx</away>
+				<result>loss</result>
+			</game>
+
+			<game>
+				<home>red liners</home>
+				<away>space monkeys</away>
+				<result>loss</result>
+			</game>
+
+			<game>
+				<home>plug uglys</home>
+				<away>no ties</away>
+				<result>loss</result>
+			</game>
+
+			<game>
+				<home>spitfires</home>
+				<away>penguins</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>phantoms</home>
+				<away>shockers</away>
+				<result>win</result>
+			</game>
+
+		</period>
+
+		<period>
+
+			<game>
+				<home>shockers</home>
+				<away>plug uglys</away>
+				<result>draw</result>
+			</game>
+
+			<game>
+				<home>spitfires</home>
+				<away>jinx</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>penguins</home>
+				<away>no ties</away>
+				<result>loss</result>
+			</game>
+
+			<game>
+				<home>red liners</home>
+				<away>phantoms</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>space monkeys</home>
+				<away>zzyzzx</away>
+				<result>loss</result>
+			</game>
+
+		</period>
+
+		<period> <!-- July 26th -->
+
+			<game>
+				<home>plug uglys</home>
+				<away>penguins</away>
+				<result>draw</result>
+			</game>
+
+			<game>
+				<home>spitfires</home>
+				<away>space monkeys</away>
+				<result>draw</result>
+			</game>
+
+			<game>
+				<home>shockers</home>
+				<away>red liners</away>
+				<result>loss</result>
+			</game>
+
+			<game>
+				<home>phantoms</home>
+				<away>zzyzzx</away>
+				<result>loss</result>
+			</game>
+
+			<game>
+				<home>no ties</home>
+				<away>jinx</away>
+				<result>loss</result>
+			</game>
+
+		</period>
+
+		<period> <!-- August 2nd -->
+
+			<game>
+				<home>phantoms</home>
+				<away>spitfires</away>
+				<result>loss</result>
+			</game>
+
+			<game>
+				<home>plug uglys</home>
+				<away>jinx</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>no ties</home>
+				<away>space monkeys</away>
+				<result>loss</result>
+			</game>
+
+			<game>
+				<home>shockers</home>
+				<away>penguins</away>
+				<result>loss</result>
+			</game>
+
+			<game>
+				<home>zzyzzx</home>
+				<away>red liners</away>
+				<result>loss</result>
+			</game>
+
+		</period>
+
+		<period> <!-- August 9th -->
+
+			<game>
+				<home>space monkeys</home>
+				<away>plug uglys</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>penguins</home>
+				<away>jinx</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>red liners</home>
+				<away>spitfires</away>
+				<result>loss</result>
+			</game>
+
+			<game>
+				<home>zzyzzx</home>
+				<away>shockers</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>phantoms</home>
+				<away>no ties</away>
+				<result>draw</result>
+			</game>
+
+		</period>
+
+		<period> <!-- August 16th -->
+
+			<game>
+				<home>red liners</home>
+				<away>no ties</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>zzyzzx</home>
+				<away>spitfires</away>
+				<result>win</result> <!-- upset! -->
+			</game>
+
+			<game>
+				<home>space monkeys</home>
+				<away>penguins</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>plug uglys</home>
+				<away>phantoms</away>
+				<result>loss</result>
+			</game>
+
+			<game>
+				<home>jinx</home>
+				<away>shockers</away>
+				<result>draw</result>
+			</game>
+
+		</period>
+
+		<period> <!-- August 23rd -->
+
+			<game>
+				<home>spitfires</home>
+				<away>shockers</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>no ties</home>
+				<away>zzyzzx</away>
+				<result>draw</result>
+			</game>
+
+			<game>
+				<home>space monkeys</home>
+				<away>jinx</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>red liners</home>
+				<away>plug uglys</away>
+				<result>win</result>
+			</game>
+
+		</period>
+
+		<period> <!-- August 30th -->
+
+			<game>
+				<home>spitfires</home>
+				<away>shockers</away>
+				<result>win</result>
+			</game>
+
+		</period>
+
+		<period> <!-- Sep 13th -->
+
+			<game>
+				<home>red liners</home>
+				<away>phantoms</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>red liners</home>
+				<away>space monkeys</away>
+				<result>win</result>
+			</game>
+
+			<game>
+				<home>spitfires</home>
+				<away>phantoms</away>
+				<result>loss</result>
+			</game>
+
+			<!-- other games unknown!!! -->
+
+		</period>
+
+</ratingdoc>
+

py/data/hockey-2.xml

@@ -0,0 +1,422 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<ratingdoc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.waits.net/XML/xmlrate.xsd">
+
+    <player>
+        <name>penguins</name>
+				<rating>1458.9</rating>
+				<deviation>145.9</deviation>
+				<variance>0.06</variance>
+    </player>
+
+    <player>
+        <name>no ties</name>
+				<rating>1474.4</rating>
+				<deviation>141.2</deviation>
+				<variance>0.06</variance>
+    </player>
+
+    <player>
+        <name>zzyzzx</name>
+				<rating>1747.3</rating>
+				<deviation>146.8</deviation>
+				<variance>0.06</variance>
+    </player>
+
+    <player>
+        <name>spitfires</name>
+				<rating>1688.8</rating>
+				<deviation>152.5</deviation>
+				<variance>0.06</variance>
+    </player>
+
+    <player>
+        <name>space monkeys</name>
+				<rating>1666.4</rating>
+				<deviation>132.5</deviation>
+				<variance>0.06</variance>
+    </player>
+
+    <player>
+        <name>plug uglys</name>
+				<rating>1247.4</rating>
+				<deviation>149.5</deviation>
+				<variance>0.06</variance>
+    </player>
+
+    <player>
+        <name>shockers</name>
+				<rating>1117.6</rating>
+				<deviation>162.1</deviation>
+				<variance>0.06</variance>
+    </player>
+
+    <player>
+        <name>phantoms</name>
+				<rating>1527.9</rating>
+				<deviation>134.9</deviation>
+				<variance>0.06</variance>
+    </player>
+
+    <player>
+        <name>buk hockey</name>
+    </player>
+
+    <player>
+        <name>battle apples</name>
+    </player>
+
+
+		<!-- 9/20/2004 -->
+    <period>
+        <game> <!-- no line -->
+            <home>shockers</home>
+            <away>plug uglys</away>
+            <result>win</result>
+        </game>
+
+        <game> <!-- spitfires over penguins -->
+            <home>spitfires</home>
+            <away>penguins</away>
+            <result>win</result>
+        </game>
+
+        <game> <!-- zzyzzx over space monkeys -->
+            <home>zzyzzx</home>
+            <away>space monkeys</away>
+            <result>win</result>
+        </game>
+
+        <game> <!-- no line -->
+            <home>no ties</home>
+            <away>buk hockey</away>
+            <result>loss</result>
+        </game>
+    </period>
+
+		<!-- 9/27/2004 -->
+    <period>
+        <game>
+            <home>buk hockey</home>
+            <away>space monkeys</away>
+            <result>draw</result>
+        </game>
+
+        <game>
+            <home>spitfires</home>
+            <away>zzyzzx</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>plug uglys</home>
+            <away>phantoms</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>shockers</home>
+            <away>no ties</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>penguins</home>
+            <away>battle apples</away>
+            <result>win</result>
+        </game>
+    </period>
+
+		<!-- 10/04/2004 -->
+    <period>
+        <game>
+            <home>buk hockey</home>
+            <away>spitfires</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>plug uglys</home>
+            <away>no ties</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>space monkeys</home>
+            <away>shockers</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>battle apples</home>
+            <away>zzyzzx</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>penguins</home>
+            <away>phantoms</away>
+            <result>loss</result>
+        </game>
+    </period>
+
+		<!-- 10/11/2004 -->
+    <period>
+        <game>
+            <home>zzyzzx</home>
+            <away>penguins</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>battle apples</home>
+            <away>buk hockey</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>shockers</home>
+            <away>spitfires</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>space monkeys</home>
+            <away>plug uglys</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>no ties</home>
+            <away>phantoms</away>
+            <result>loss</result>
+        </game>
+    </period>
+
+		<!-- 10/25/2004 -->
+    <period>
+        <game>
+            <home>battle apples</home>
+            <away>plug uglys</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>penguins</home>
+            <away>shockers</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>no ties</home>
+            <away>spitfires</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>phantoms</home>
+            <away>space monkeys</away>
+            <result>draw</result>
+        </game>
+
+        <game>
+            <home>zzyzzx</home>
+            <away>buk hockey</away>
+            <result>win</result>
+        </game>
+    </period>
+
+		<!-- 11/01/2004 -->
+    <period>
+        <game>
+            <home>phantoms</home>
+            <away>buk hockey</away>
+            <result>draw</result>
+        </game>
+
+        <game>
+            <home>zzyzzx</home>
+            <away>shockers</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>penguins</home>
+            <away>plug uglys</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>no ties</home>
+            <away>battle apples</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>spitfires</home>
+            <away>space monkeys</away>
+            <result>win</result>
+        </game>
+    </period>
+
+		<!-- 11/15/2004 -->
+    <period>
+        <game>
+            <home>shockers</home>
+            <away>phantoms</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>zzyzzx</home>
+            <away>no ties</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>plug uglys</home>
+            <away>buk hockey</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>spitfires</home>
+            <away>battle apples</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>space monkeys</home>
+            <away>penguins</away>
+            <result>win</result>
+        </game>
+    </period>
+
+		<!-- 11/22/2004 -->
+    <period>
+        <game>
+            <home>penguins</home>
+            <away>spitfires</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>buk hockey</home>
+            <away>no ties</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>space monkeys</home>
+            <away>zzyzzx</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>battle apples</home>
+            <away>phantoms</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>plug uglys</home>
+            <away>shockers</away>
+            <result>loss</result>
+        </game>
+    </period>
+
+		<!-- 11/29/2004 -->
+    <period>
+        <game>
+            <home>plug uglys</home>
+            <away>spitfires</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>phantoms</home>
+            <away>zzyzzx</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>battle apples</home>
+            <away>shockers</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>space monkeys</home>
+            <away>no ties</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>buk hockey</home>
+            <away>penguins</away>
+            <result>loss</result>
+        </game>
+    </period>
+
+		<!-- 12/06/2004 -->
+    <period>
+        <game>
+            <home>space monkeys</home>
+            <away>battle apples</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>no ties</home>
+            <away>penguins</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>buk hockey</home>
+            <away>shockers</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>spitfires</home>
+            <away>phantoms</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>plug uglys</home>
+            <away>zzyzzx</away>
+            <result>loss</result>
+        </game>
+    </period>
+
+		<!-- 1/17/2005 -->
+    <period>
+        <game>
+            <home>phantoms</home>
+            <away>no ties</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>space monkeys</home>
+            <away>buk hockey</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>spitfires</home>
+            <away>battle apples</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>zzyzzx</home>
+            <away>penguins</away>
+            <result>loss</result>
+        </game>
+    </period>
+
+</ratingdoc>
+

py/data/hockey-2005.xml

@@ -0,0 +1,503 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<ratingdoc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.waits.net/XML/xmlrate.xsd">
+
+	<player>
+		<name>no ties</name>
+		<rating>1472.6</rating>
+		<deviation>100.3</deviation>
+		<variance>0.06</variance>
+	</player>
+
+	<player>
+		<name>zzyzzx</name>
+		<rating>1657.5</rating>
+		<deviation>106.0</deviation>
+		<variance>0.06</variance>
+	</player>
+
+	<player>
+		<name>penguins</name>
+		<rating>1436.3</rating>
+		<deviation>103.2</deviation>
+		<variance>0.06</variance>
+	</player>
+
+	<player>
+		<name>spitfires</name>
+		<rating>1801.5</rating>
+		<deviation>112.3</deviation>
+		<variance>0.06</variance>
+	</player>
+
+	<player>
+		<name>space monkeys</name>
+		<rating>1659.8</rating>
+		<deviation>98.1</deviation>
+		<variance>0.06</variance>
+	</player>
+
+	<player>
+		<name>plug uglys</name>
+		<rating>1125.4</rating>
+		<deviation>113.1</deviation>
+		<variance>0.06</variance>
+	</player>
+
+	<player>
+		<name>shockers</name>
+		<rating>1196.3</rating>
+		<deviation>117.0</deviation>
+		<variance>0.06</variance>
+	</player>
+
+	<player>
+		<name>phantoms</name>
+		<rating>1652.6</rating>
+		<deviation>98.6</deviation>
+		<variance>0.06</variance>
+	</player>
+
+	<player>
+		<name>battle apples</name>
+		<rating>1302.6</rating>
+		<deviation>156.9</deviation>
+		<variance>0.06</variance>
+	</player>
+
+	<player>
+		<name>blackouts</name>
+		<rating>1531.3</rating>
+		<deviation>121.4</deviation>
+		<variance>0.06</variance>
+	</player>
+
+	<player>
+		<name>coaches team</name>
+	</player>
+
+	<player>
+		<name>old school</name>
+	</player>
+
+	<player>
+		<name>ballistic</name>
+	</player>
+
+	<player>
+		<name>velocity</name>
+	</player>
+
+	<player>
+		<name>puck heads</name>
+	</player>
+
+	<player>
+		<name>demons</name>
+	</player>
+
+	<player>
+		<name>section 8</name>
+	</player>
+
+	<player>
+		<name>who's your daddy</name>
+	</player>
+
+	<player>
+		<name>blackhawks</name>
+	</player>
+
+	<player>
+		<name>tiger sharks</name>
+	</player>
+
+	<period>
+		<game>
+			<home>phantoms</home>
+			<away>spitfires</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>battle apples</home>
+			<away>blackouts</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>zzyzzx</home>
+			<away>penguins</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>plug uglys</home>
+			<away>space monkeys</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>no ties</home>
+			<away>coaches team</away>
+			<result>win</result>
+		</game>
+	</period>
+
+	<period>
+		<game>
+			<home>spitfires</home>
+			<away>no ties</away>
+			<result>draw</result>
+		</game>
+		<game>
+			<home>penguins</home>
+			<away>blackouts</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>zzyzzx</home>
+			<away>plug uglys</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>space monkeys</home>
+			<away>old school</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>coaches team</home>
+			<away>shockers</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>phantoms</home>
+			<away>battle apples</away>
+			<result>win</result>
+		</game>
+	</period>
+
+	<period>
+		<game>
+			<home>space monkeys</home>
+			<away>zzyzzx</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>coaches team</home>
+			<away>battle apples</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>plug uglys</home>
+			<away>phantoms</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>shockers</home>
+			<away>spitfires</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>blackouts</home>
+			<away>old school</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>no ties</home>
+			<away>penguins</away>
+			<result>loss</result>
+		</game>
+	</period>
+
+	<period>
+		<game>
+			<home>old school</home>
+			<away>phantoms</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>plug uglys</home>
+			<away>no ties</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>shockers</home>
+			<away>zzyzzx</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>blackouts</home>
+			<away>space monkeys</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>coaches team</home>
+			<away>penguins</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>spitfires</home>
+			<away>battle apples</away>
+			<result>win</result>
+		</game>
+	</period>
+
+	<period>
+		<game>
+			<home>battle apples</home>
+			<away>shockers</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>zzyzzx</home>
+			<away>blackouts</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>space monkeys</home>
+			<away>phantoms</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>no ties</home>
+			<away>old school</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>penguins</home>
+			<away>spitfires</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>coaches team</home>
+			<away>plug uglys</away>
+			<result>win</result>
+		</game>
+	</period>
+
+	<period>
+		<game>
+			<home>no ties</home>
+			<away>space monkeys</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>old school</home>
+			<away>coaches team</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>penguins</home>
+			<away>battle apples</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>plug uglys</home>
+			<away>spitfires</away>
+			<result>draw</result>
+		</game>
+		<game>
+			<home>phantoms</home>
+			<away>zzyzzx</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>shockers</home>
+			<away>blackouts</away>
+			<result>win</result>
+		</game>
+	</period>
+
+	<period>
+		<game>
+			<home>blackouts</home>
+			<away>phantoms</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>penguins</home>
+			<away>shockers</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>zzyzzx</home>
+			<away>no ties</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>space monkeys</home>
+			<away>coaches team</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>battle apples</home>
+			<away>plug uglys</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>spitfires</home>
+			<away>old school</away>
+			<result>win</result>
+		</game>
+	</period>
+
+	<period>
+		<game>
+			<home>phantoms</home>
+			<away>shockers</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>blackouts</home>
+			<away>no ties</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>battle apples</home>
+			<away>old school</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>plug uglys</home>
+			<away>penguins</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>space monkeys</home>
+			<away>spitfires</away>
+			<result>draw</result>
+		</game>
+		<game>
+			<home>zzyzzx</home>
+			<away>coaches team</away>
+			<result>win</result>
+		</game>
+	</period>
+
+	<period>
+		<game>
+			<home>spitfires</home>
+			<away>zzyzzx</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>space monkeys</home>
+			<away>battle apples</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>no ties</home>
+			<away>phantoms</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>coaches team</home>
+			<away>blackouts</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>shockers</home>
+			<away>plug uglys</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>old school</home>
+			<away>penguins</away>
+			<result>loss</result>
+		</game>
+	</period>
+
+	<period>
+		<game>
+			<home>old school</home>
+			<away>shockers</away>
+			<result>win</result>
+		</game>
+	</period>
+
+	<!-- mon, 4/25 -->
+	<period>
+		<game>
+			<home>spitfires</home>
+			<away>coaches team</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>battle apples</home>
+			<away>no ties</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>old school</home>
+			<away>zzyzzx</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>penguins</home>
+			<away>phantoms</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>blackouts</home>
+			<away>plug uglys</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>shockers</home>
+			<away>space monkeys</away>
+			<result>loss</result>
+		</game>
+	</period>
+
+	<!-- wed, 4/27 -->
+	<period>
+		<game>
+			<home>shockers</home>
+			<away>ballistic</away>
+			<result>loss</result>
+		</game>
+		<game>
+			<home>blackhawks</home>
+			<away>puck heads</away>
+			<result>win</result>
+		</game>
+		<game>
+			<home>section 8</home>
+			<away>velocity</away>
+			<result>draw</result>
+		</game>
+		<game>
+			<home>demons</home>
+			<away>spitfires</away>
+			<result>draw</result>
+		</game>
+		<game>
+			<home>who's your daddy</home>
+			<away>tiger sharks</away>
+			<result>draw</result>
+		</game>
+	</period>
+
+    <!-- mon, 5/2 (playoffs round 1) -->
+    <period>
+        <game>
+            <home>no ties</home>
+            <away>penguins</away>
+            <result>loss</result>
+        </game>
+        <game>
+            <home>phantoms</home>
+            <away>space monkeys</away>
+            <result>loss</result>
+        </game>
+        <game>
+            <home>zzyzzx</home>
+            <away>coaches team</away>
+            <result>loss</result>
+        </game>
+        <game>
+            <home>spitfires</home>
+            <away>blackouts</away>
+            <result>win</result>
+        </game>
+    </period>
+
+</ratingdoc>
+

py/example.xml

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<ratingdoc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.waits.net/XML/xmlrate.xsd">
+
+
+    <player>
+        <name>A</name>
+        <rating>1500</rating>
+        <deviation>200</deviation>
+        <volatility>0.06</volatility>
+    </player>
+
+    <player>
+        <name>B</name>
+        <rating>1400</rating>
+        <deviation>30</deviation>
+        <volatility>0.06</volatility>
+    </player>
+
+    <player>
+        <name>C</name>
+        <rating>1550</rating>
+        <deviation>100</deviation>
+        <volatility>0.06</volatility>
+    </player>
+
+    <player>
+        <name>D</name>
+        <rating>1700</rating>
+        <deviation>300</deviation>
+        <volatility>0.06</volatility>
+    </player>
+
+
+    <period>
+        <game>
+            <home>A</home>
+            <away>B</away>
+            <result>win</result>
+        </game>
+
+        <game>
+            <home>A</home>
+            <away>C</away>
+            <result>loss</result>
+        </game>
+
+        <game>
+            <home>A</home>
+            <away>D</away>
+            <result>loss</result>
+        </game>
+    </period>
+
+</ratingdoc>
+

py/glicko2.py

@@ -0,0 +1,240 @@
+#
+#
+# Copyright (c) 2004 Stephen Waits
+# 
+# This software is provided 'as-is', without any express or implied warranty. In
+# no event will the authors be held liable for any damages arising from the use
+# of this software.
+# 
+# Permission is granted to anyone to use this software for any purpose,
+# including commercial applications, and to alter it and redistribute it freely,
+# subject to the following restrictions:
+# 
+# 1. The origin of this software must not be misrepresented; you must not claim
+#    that you wrote the original software. If you use this software in a
+#    product, an acknowledgment in the product documentation would be
+#    appreciated but is not required.
+# 
+# 2. Altered source versions must be plainly marked as such, and must not be
+#    misrepresented as being the original software.
+# 
+# 3. This notice may not be removed or altered from any source distribution.
+#
+#
+
+
+import math
+import copy
+
+
+class Glicko2:
+    """
+    Glicko-2 Rating calculator class.
+    
+    This class implements the Glicko-2 rating system algorithm written by 
+    Professor Mark E. Glickman.  All rating inputs and outputs are Glicko ratings,
+    but internally everything is converted to and considered Glicko-2 ratings.
+    
+    Glicko-2 is an improvement on the original Glicko, which was, in turn, an
+    improvement on the ELO system.
+    
+    The Glicko-2 system is specified on http://www.glicko.com/
+    """
+
+    WIN  = 1.0
+    LOSS = 0.0
+    DRAW = 0.5
+
+    dvolatility = 0.3
+
+    def __init__ (self, rating = 1500.0, deviation = 350.0, volatility = 0.06):
+        """
+        Constructor with rating, rating deviation, and volatility optionally
+        specified.  If nothing specified, nitializes to a rating of 1500, a 
+        rating deviation of 350, and a volatility of 0.06.
+        """
+
+        # creat state vars
+        self.__rating     = 0.0
+        self.__deviation  = 0.0
+        self.__volatility = 0.0
+
+        # create empty result lists
+        self.__opponents = []
+        self.__results   = []
+
+        # initialize state
+        self.SetRating(rating)
+        self.SetDeviation(deviation)
+        self.SetVolatility(volatility)
+
+    def __cmp__(self, other):
+        """Comparison operator"""
+        return cmp( self.__rating, other.__rating )
+
+
+    def GetRating (self):
+        """
+        Get the current rating.  This rating is a Glicko rating, not a Glicko2 rating.
+        For details, please see http://www.glicko.com/
+        """
+        return (self.__rating * 173.7178) + 1500.0
+
+    def GetDeviation (self):
+        """
+        Get the current rating deviation.  This is a Glicko rating deviation, not a 
+        Glicko-2 RD.  For details, please see http://www.glicko.com/
+        """
+        return self.__deviation * 173.7178
+
+    def GetVolatility (self):
+        """
+        Get the current rating volatility.
+        """
+        return self.__volatility
+
+    def SetRating (self, rating):
+        """
+        Set Glicko rating.  Internally this is converted to a Glicko2 rating.
+        For details, please see http://www.glicko.com/
+        """
+        self.__rating = (rating - 1500.0) / 173.7178
+
+    def SetDeviation(self, deviation):
+        """
+        Set Glicko rating deviation.  Internally this is converted to a Glicko-2 RD.
+        For details, please see http://www.glicko.com/
+        """
+        self.__deviation = deviation / 173.7178
+
+    def SetVolatility(self, volatility):
+        """
+        Set rating volatility.
+        """
+        self.__volatility = volatility
+
+    def ClearResults (self):
+        """
+        Clear all results previously added via AddResult(), AddWin(), AddLoss(),
+        and/or AddDraw().  This method is called automatically whenever Update()
+        is called.
+        """
+        self.__opponents = []
+        self.__results   = []
+
+    def AddResult (self, opponent, result):
+        """
+        Add a result to this rating.  Note that no calculation is performed until
+        Update() is called.
+        """
+        self.__opponents.append(copy.copy(opponent))
+        self.__results.append(copy.copy(result)) # copy probably not needed
+
+    def AddWin (self, opponent):
+        """
+        Add a win result to this rating.  Note that no calculation is performed until
+        Update() is called.
+        """
+        self.AddResult(opponent, self.WIN)
+
+    def AddLoss (self, opponent):
+        """
+        Add a loss result to this rating.  Note that no calculation is performed until
+        Update() is called.
+        """
+        self.AddResult(opponent, self.LOSS)
+
+    def AddDraw (self, opponent):
+        """
+        Add a draw result to this rating.  Note that no calculation is performed until
+        Update() is called.
+        """
+        self.AddResult(opponent, self.DRAW)
+
+    def Update (self):
+        """
+        Update rating based on current results list, and clear results.
+        """
+
+        # util func
+        def g (deviation):
+            """
+            Internal utility function.
+            """
+            return 1.0 / (math.sqrt(1.0 + 3.0 * deviation * deviation / (math.pi * math.pi)));
+
+        # util func
+        def E (rating, rating_opponent, deviation_opponent):
+            """
+            Internal utility function.
+            """
+            return 1.0 / (1.0 + math.exp(-g(deviation_opponent)*(rating - rating_opponent)));
+
+        # bail if no opponents set
+        if len(self.__opponents) == 0:
+            return
+
+        # compute variance
+        variance = 0.0
+        for opp in self.__opponents:
+            g_i        = g(opp.__deviation)
+            E_i        = E(self.__rating,opp.__rating,opp.__deviation)
+            variance  += g_i * g_i * E_i * (1.0 - E_i)
+        variance = 1.0 / variance
+
+        # compute delta
+        delta = 0.0
+        for i in range(len(self.__opponents)):
+            delta += g(self.__opponents[i].__deviation) * (self.__results[i] - E(self.__rating, self.__opponents[i].__rating, self.__opponents[i].__deviation))
+        delta *= variance
+
+        # determine new volatility
+        new_volatility = 0.0
+        a              = math.log( math.pow(self.__volatility,2.0) )
+        x              = 0.0
+        x_new          = a
+        while ( abs(x - x_new) > 0.0000001 ):
+            x     = x_new;
+            d     = math.pow(self.__deviation,2.0) + variance + math.exp(x)
+            h1    = -(x - a)/(math.pow(self.dvolatility,2.0)) - 0.5*math.exp(x)/d + 0.5*math.exp(x)*(delta/d)*(delta/d)
+            h2    = -1.0/(math.pow(self.dvolatility,2.0)) - 0.5*math.exp(x)*(math.pow(self.__deviation,2.0)+variance)/(pow(d,2.0)) + 0.5*(math.pow(delta,2.0))*math.exp(x)*((math.pow(self.__deviation,2.0)) + variance - math.exp(x))/(pow(d,3.0))
+            x_new = x - h1/h2
+        new_volatility = math.exp(x_new / 2.0)
+
+        # update the rating deviation to the new pre-rating period value
+        pre_deviation = math.sqrt( math.pow(self.__deviation,2.0) + math.pow(new_volatility,2.0) )
+
+        # update the rating and deviation
+        new_deviation = 1.0 / (math.sqrt( 1.0/(pow(pre_deviation,2.0)) + 1.0 / variance))
+        new_rating    = 0.0
+        for i in range(len(self.__opponents)):
+            new_rating += g(self.__opponents[i].__deviation) * (self.__results[i] - E(self.__rating, self.__opponents[i].__rating, self.__opponents[i].__deviation))
+        new_rating  = new_rating * pow(new_deviation,2.0)
+        new_rating += self.__rating
+
+        # copy new values
+        self.__rating     = new_rating
+        self.__deviation  = new_deviation
+        self.__volatility = new_volatility
+
+        # wipe our result lists
+        self.ClearResults()
+
+
+
+# test code
+if __name__ == "__main__":
+
+    A = Glicko2(1500.0, 200.0, 0.06)
+    B = Glicko2(1400.0,  30.0, 0.06)
+    C = Glicko2(1550.0, 100.0, 0.06)
+    D = Glicko2(1700.0, 300.0, 0.06)
+    
+    A.AddWin(B)
+    A.AddLoss(C)
+    A.AddResult(D,Glicko2.LOSS)
+    
+    A.Update();
+    
+    print "rating",A.GetRating(), "deviation",A.GetDeviation()
+

py/xmlrate.py

@@ -0,0 +1,228 @@
+#!/usr/bin/env python
+
+import sys
+import glicko2
+import xml.dom.minidom
+
+# globals
+gPlayers = dict()
+gTeams   = dict()
+
+
+def getText(nodelist):
+    rc = ""
+    for node in nodelist:
+        if node.nodeType == node.TEXT_NODE:
+            rc = rc + node.data
+    return rc
+
+
+def parsePlayers (docroot):
+
+    # get players
+    playerelements = docroot.getElementsByTagName("player")
+
+    # parse each player
+    for player in playerelements:
+
+        # get the name
+        namenode = player.getElementsByTagName("name")
+        assert namenode
+        name = getText(namenode[0].childNodes)
+
+        # setup default rating data
+        g2 = glicko2.Glicko2()
+
+        # look for rating
+        ratingnode = player.getElementsByTagName("rating")
+        if ratingnode:
+            g2.SetRating( float(getText(ratingnode[0].childNodes)) )
+
+        # look for deviation
+        deviationnode = player.getElementsByTagName("deviation")
+        if deviationnode:
+            g2.SetDeviation( float(getText(deviationnode[0].childNodes)) )
+
+        # look for volatility
+        volatilitynode = player.getElementsByTagName("volatility")
+        if volatilitynode:
+            g2.SetVolatility( float(getText(volatilitynode[0].childNodes)) )
+
+        # add to dictionary
+        gPlayers[name] = g2
+
+
+def parseTeams (docroot):
+
+    # get teams
+    teamelements = docroot.getElementsByTagName("team")
+
+    # parse each team
+    for team in teamelements:
+
+        # get the name
+        namenode = team.getElementsByTagName("name")
+        assert namenode
+        name = getText(namenode[0].childNodes)
+
+        # add name to our dictionary
+        gTeams[name] = []
+
+        # look for members, add to dictionary
+        membernode = team.getElementsByTagName("member")
+        assert membernode # makes certain team is not empty
+        for member in membernode:
+            gTeams[name].append( getText(member.childNodes) )
+
+
+def outputPlayers():
+    sorted = [(v, k) for k, v in gPlayers.items()]
+    sorted.sort()
+    sorted.reverse()             # so largest is first
+    sorted = [(k, v) for v, k in sorted]
+    i = 0
+    for k,v in sorted:
+        i += 1
+        print "%3d%30s: %6.1f   +/- %5.1f   %0.05f" % \
+            ( i, k, v.GetRating(), v.GetDeviation(), v.GetVolatility() )
+
+
+
+
+def handlePeriods (docroot):
+
+    # our period count
+    periodcount = 0
+
+    # get all periods
+    periodelements = docroot.getElementsByTagName("period")
+
+    # handle each period
+    for period in periodelements:
+
+        # track period id
+        periodcount += 1
+        print
+        print "after rating period",periodcount
+
+				# deal with either a race or a game node
+        for node in period.childNodes:
+            if node.nodeType == node.ELEMENT_NODE:
+								if node.tagName == "race":
+										handleRace(node)
+								elif node.tagName == "game":
+										handleGame(node)
+
+        # all games entered for this period, now update all players ratings
+        for k,v in gPlayers.items():
+            v.Update()
+
+        # sort players for output
+        outputPlayers()
+
+
+def handleRace (race):
+
+		# get competitors
+    competitornodes = race.getElementsByTagName("competitor")
+
+    # a list of our racers
+    racelist = []
+
+    for competitor in competitornodes:
+
+				# get name from XML
+        competitorname = getText(competitor.childNodes)
+
+				# look name up in our team list
+        if gTeams.has_key(competitorname):
+            competitornames = gTeams[competitorname]
+        else:
+            competitornames = [competitorname]
+
+        # make all of these competitors losers to everyone already in the list
+        for plist in racelist:
+            for pl in plist:
+                for co in competitornames:
+                    gPlayers[pl].AddWin(gPlayers[co])
+                    gPlayers[co].AddLoss(gPlayers[pl])
+
+        # now let's add this list to our race list
+        racelist.append( competitornames )
+
+
+
+def handleGame (game):
+
+    # get home
+    homenode = game.getElementsByTagName("home")
+    assert homenode
+    home = getText(homenode[0].childNodes)
+
+    # get away
+    awaynode = game.getElementsByTagName("away")
+    assert awaynode
+    away = getText(awaynode[0].childNodes)
+
+    # get result
+    resultnode = game.getElementsByTagName("result")
+    assert resultnode
+    result = getText(resultnode[0].childNodes)
+    assert result == "win" or result == "loss" or result == "draw"
+
+    # see if home is a team
+    if gTeams.has_key(home):
+        homeplayernames = gTeams[home]
+    else:
+        homeplayernames = [home]
+
+    # see if away is a team
+    if gTeams.has_key(away):
+        awayplayernames = gTeams[away]
+    else:
+        awayplayernames = [away]
+
+    # determine each team's result
+    if result == "win":
+        homeresult = glicko2.Glicko2.WIN
+        awayresult = glicko2.Glicko2.LOSS
+    elif result == "loss":
+        homeresult = glicko2.Glicko2.LOSS
+        awayresult = glicko2.Glicko2.WIN
+    elif result == "draw":
+        homeresult = glicko2.Glicko2.DRAW
+        awayresult = glicko2.Glicko2.DRAW
+
+    # now let's add all the results to the Glicko2 objects
+    for hname in homeplayernames:
+        for aname in awayplayernames:
+            gPlayers[hname].AddResult( gPlayers[aname], homeresult )
+    for aname in awayplayernames:
+        for hname in homeplayernames:
+            gPlayers[aname].AddResult( gPlayers[hname], awayresult )
+
+
+
+
+
+
+def main ():
+
+    # parse input document
+    docroot = xml.dom.minidom.parse(sys.argv[1])
+
+    # build player & team list
+    parsePlayers(docroot)
+    parseTeams(docroot)
+
+		# show initial ratings
+    print "initial ratings"
+    outputPlayers()
+
+    # process all the periods
+    handlePeriods(docroot)
+
+
+if __name__ == '__main__':
+    main()
+

py/xmlrate.xsd

@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
+
+<xs:simpleType name="ratingtype">
+    <xs:restriction base="xs:decimal">
+        <xs:minInclusive value="100.0"/>
+        <xs:maxInclusive value="4000.0"/>
+    </xs:restriction>
+</xs:simpleType>
+  
+<xs:simpleType name="deviationtype">
+    <xs:restriction base="xs:decimal">
+        <xs:minInclusive value="0.0"/>
+        <xs:maxInclusive value="700.0"/>
+    </xs:restriction>
+</xs:simpleType>
+  
+<xs:simpleType name="volatilitytype">
+    <xs:restriction base="xs:decimal">
+        <xs:minInclusive value="0.0"/>
+        <xs:maxInclusive value="10.0"/>
+    </xs:restriction>
+</xs:simpleType>
+  
+<xs:simpleType name="nametype">
+    <xs:restriction base="xs:string">
+        <xs:whiteSpace value="collapse"/>
+    </xs:restriction>
+</xs:simpleType>
+
+<xs:simpleType name="commenttype">
+    <xs:restriction base="xs:string">
+        <xs:whiteSpace value="preserve"/>
+    </xs:restriction>
+</xs:simpleType>
+
+<xs:simpleType name="resulttype">
+    <xs:restriction base ="xs:string">
+        <xs:enumeration value="win"/>
+        <xs:enumeration value="loss"/>
+        <xs:enumeration value="draw"/>
+    </xs:restriction>
+</xs:simpleType>
+
+<xs:complexType name="racetype">
+    <xs:choice>
+        <xs:element minOccurs="1" maxOccurs="unbounded" name="competitor" type="nametype"/>
+    </xs:choice>
+</xs:complexType>
+
+<xs:complexType name="gametype">
+    <xs:all>
+        <xs:element minOccurs="1" name="home" type="nametype"/>
+        <xs:element minOccurs="1" name="away" type="nametype"/>
+        <xs:element minOccurs="1" name="result" type="resulttype"/>
+        <xs:element minOccurs="0" name="comment" type="commenttype"/>        
+    </xs:all>
+</xs:complexType>
+
+<xs:complexType name="periodtype">
+    <xs:choice>
+        <xs:element maxOccurs="unbounded" name="game" type="gametype"/>
+        <xs:element maxOccurs="unbounded" name="race" type="racetype"/>
+    </xs:choice>
+</xs:complexType>
+
+<xs:complexType name="teamtype">
+    <xs:sequence>
+        <xs:element minOccurs="1" maxOccurs="1" name="name" type="nametype"/>
+        <xs:element minOccurs="1" maxOccurs="unbounded" name="member" type="nametype"/>
+    </xs:sequence>
+</xs:complexType>
+
+<xs:complexType name="playertype">
+    <xs:all>
+        <xs:element minOccurs="1" name="name" type="nametype"/>
+        <xs:element minOccurs="0" name="rating" type="ratingtype"/>
+        <xs:element minOccurs="0" name="deviation" type="deviationtype"/>
+        <xs:element minOccurs="0" name="volatility" type="volatilitytype"/>
+    </xs:all>
+</xs:complexType>
+
+<xs:complexType name="ratingdoctype">
+    <xs:sequence>
+        <xs:element minOccurs="1" maxOccurs="unbounded" name="player" type="playertype"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" name="team" type="teamtype"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" name="period" type="periodtype"/>
+    </xs:sequence>
+</xs:complexType>
+
+<xs:element name="ratingdoc" type="ratingdoctype"/>
+
+</xs:schema>

rb/glicko2.rb

@@ -0,0 +1,230 @@
+#!/usr/bin/env ruby
+
+#
+#
+# Copyright (c) 2004 Stephen Waits
+# 
+# This software is provided 'as-is', without any express or implied warranty. In
+# no event will the authors be held liable for any damages arising from the use
+# of this software.
+# 
+# Permission is granted to anyone to use this software for any purpose,
+# including commercial applications, and to alter it and redistribute it freely,
+# subject to the following restrictions:
+# 
+# 1. The origin of this software must not be misrepresented; you must not claim
+#    that you wrote the original software. If you use this software in a
+#    product, an acknowledgment in the product documentation would be
+#    appreciated but is not required.
+# 
+# 2. Altered source versions must be plainly marked as such, and must not be
+#    misrepresented as being the original software.
+# 
+# 3. This notice may not be removed or altered from any source distribution.
+#
+#
+
+
+# Glicko-2 Rating calculator class.
+#
+# This class implements the Glicko-2 rating system algorithm written by 
+# Professor Mark E. Glickman.  All rating inputs and outputs are Glicko ratings,
+# but internally everything is converted to and considered Glicko-2 ratings.
+#
+# Glicko-2 is an improvement on the original Glicko, which was, in turn, an
+# improvement on the ELO system.
+#
+# The Glicko-2 system is specified on http://www.glicko.com/
+# 
+class Glicko2
+
+	protected
+
+		# Glicko2 reprensentation (Glicko2 uses different scales from Glicko)
+		attr_accessor :g2rating, :g2deviation, :g2volatility
+	
+		# a nested Class to hold a single result
+		Result = Struct.new(:opponent, :result)
+
+	public
+
+		WIN  = 1.0
+		LOSS = 0.0
+		DRAW = 0.5
+		
+		# Constructor with rating, rating deviation, and volatility optionally
+		# specified.  If nothing specified, nitializes to a rating of 1500, a 
+		# rating deviation of 350, and a volatility of 0.06.
+		def initialize(rating = 1500.0, deviation = 350.0, volatility = 0.06)
+			@dvolatility    = 0.3
+			self.rating     = rating
+			self.deviation  = deviation
+			self.volatility = volatility
+			clear_results
+		end
+
+		include Comparable
+
+		# Comparison operator
+		def <=>(other)
+			self.rating <=> other.rating
+		end
+
+		# Get the current rating.  This rating is a Glicko rating, not a Glicko2 rating.
+		# For details, please see http://www.glicko.com/
+		def rating
+			(@g2rating * 173.7178) + 1500.0
+		end
+
+		# Set Glicko rating.  Internally this is converted to a Glicko2 rating.
+		# For details, please see http://www.glicko.com/
+		def rating=(r)
+			@g2rating = (r - 1500.0) / 173.7178
+		end
+
+		# Get the current rating deviation.  This is a Glicko rating deviation, not a 
+		# Glicko-2 RD.  For details, please see http://www.glicko.com/
+		def deviation
+			@g2deviation * 173.7178
+		end
+
+		# Set Glicko rating deviation.  Internally this is converted to a Glicko-2 RD.
+		# For details, please see http://www.glicko.com/
+		def deviation=(d)
+			@g2deviation = d / 173.7178
+		end
+
+		# Get the current rating volatility.
+		def volatility
+			@g2volatility
+		end
+
+		# Set rating volatility.
+		def volatility=(v)
+			@g2volatility = v
+		end
+
+		# Clear all results previously added via add_result(), add_win(), add_loss(),
+		# and/or add_draw().  This method is called automatically whenever update()
+		# is called.
+		def clear_results
+			@opponents = []
+			@results = []
+		end
+
+		# Add a result to this rating.  Note that no calculation is performed until
+		# update() is called.
+		def add_result(opponent,result)
+			@results.push( Result.new(opponent.clone, result) )
+		end
+
+		# Add a win result to this rating.  Note that no calculation is performed until
+		# update() is called.
+		def add_win(opponent)
+			add_result(opponent,Glicko2::WIN)
+		end
+
+		# Add a loss result to this rating.  Note that no calculation is performed until
+		# update() is called.
+		def add_loss(opponent)
+			add_result(opponent,Glicko2::LOSS)
+		end
+
+		# Add a draw result to this rating.  Note that no calculation is performed until
+		# update() is called.
+		def add_draw(opponent)
+			add_result(opponent,Glicko2::DRAW)
+		end
+	
+		# Update rating based on current results list, and clear results.
+		def update
+		
+			# util func
+			def Glicko2.g(deviation)
+				1.0 / (Math.sqrt(1.0 + 3.0 * deviation ** 2.0 / (Math::PI ** 2.0)))
+			end
+		
+			# util func
+			def Glicko2.E(rating, rating_opponent, deviation_opponent)
+				1.0 / (1.0 + Math.exp(-Glicko2.g(deviation_opponent)*(rating - rating_opponent)));
+			end
+		
+			# bail if no opponents set
+			if @results.empty?
+				return nil
+			end
+
+			# compute variance
+
+			#variance = 0.0
+			#@results.inject(0.0) do |variance,r|
+			#	g_i = Glicko2.g(r.opponent.g2deviation)
+			#	e_i = Glicko2.E(@g2rating,r.opponent.g2rating,r.opponent.g2deviation)
+			#	g_i ** 2.0 * e_i * (1.0 - e_i)
+			#end
+
+			variance = 0.0
+			@results.each do |r|
+				g_i = Glicko2.g(r.opponent.g2deviation)
+				e_i = Glicko2.E(@g2rating,r.opponent.g2rating,r.opponent.g2deviation)
+				variance += g_i ** 2.0 * e_i * (1.0 - e_i)
+			end
+			variance = 1.0 / variance
+		
+			# compute delta
+			delta = 0.0
+			@results.each do |r|
+				delta += Glicko2.g(r.opponent.g2deviation) * (r.result - Glicko2.E(@g2rating, r.opponent.g2rating, r.opponent.g2deviation))
+			end
+			delta *= variance
+		
+			# determine new volatility
+			new_volatility = 0.0
+			a              = Math.log( @g2volatility**2.0 )
+			x              = 0.0
+			x_new          = a
+			while ( (x - x_new).abs > 0.0000001 )
+				x     = x_new
+				d     = @g2deviation**2.0 + variance + Math.exp(x)
+				h1    = -(x - a)/(@dvolatility**2.0) - 0.5*Math.exp(x)/d + 0.5*Math.exp(x)*(delta/d)*(delta/d)
+				h2    = -1.0/(@dvolatility**2.0) - 0.5*Math.exp(x)*(@g2deviation**2.0+variance)/(d**2.0) + 0.5*(delta**2.0)*Math.exp(x)*((@g2deviation**2.0) + variance - Math.exp(x))/(d**3.0)
+				x_new = x - h1/h2
+			end
+			new_volatility = Math.exp(x_new / 2.0)
+		
+			# update the rating deviation to the new pre-rating period value
+			pre_deviation = Math.sqrt( @g2deviation**2.0 + new_volatility**2.0 )
+
+			# update the rating and deviation
+			new_deviation = 1.0 / (Math.sqrt( 1.0/(pre_deviation**2.0) + 1.0 / variance))
+			new_rating    = 0.0
+			@results.each do |r|
+			    new_rating += Glicko2.g(r.opponent.g2deviation) * (r.result - Glicko2.E(@g2rating, r.opponent.g2rating, r.opponent.g2deviation))
+			end
+			new_rating  = new_rating * new_deviation**2.0
+			new_rating += @g2rating
+
+			# wipe our result lists
+			clear_results
+
+			# copy new values
+			@g2deviation  = new_deviation
+			@g2volatility = new_volatility
+			@g2rating     = new_rating
+		end
+end
+
+
+A = Glicko2.new(1500.0, 200.0, 0.06)
+B = Glicko2.new(1400.0,  30.0, 0.06)
+C = Glicko2.new(1550.0, 100.0, 0.06)
+D = Glicko2.new(1700.0, 300.0, 0.06)
+
+A.add_win(B)
+A.add_loss(C)
+A.add_result(D,0.0)
+
+A.update()
+
+print "rating ", A.rating, " deviation ", A.deviation
+

rb/xmlrate.rb

@@ -0,0 +1,57 @@
+
+require "rexml/document"
+
+file = File.new( "../py/data/hockey-2005.xml" )
+
+doc = REXML::Document.new(file)
+
+# each rating doc
+doc.elements.each("ratingdoc") do |root|
+
+	# each player
+	root.elements.each("player") do |player|
+
+		name      = player.elements["name"].text
+		rating    = 1500.0
+		deviation = 350.0
+		variance  = 0.06
+
+		# TODO: find better "Ruby-esqe" way of doing these
+		if player.elements["rating"]
+			rating = player.elements["rating"].text
+		end
+		if player.elements["deviation"]
+			deviation = player.elements["deviation"].text
+		end
+		if player.elements["variance"]
+			variance = player.elements["variance"].text
+		end
+
+		puts name,rating,deviation,variance
+		puts
+
+	end
+	
+	# each rating period
+	root.elements.each("period") do |period|
+
+		# each regular game
+		period.elements.each("game") do |game|
+			puts "home",game.elements["home"].text
+			puts "away",game.elements["away"].text
+			puts "result",game.elements["result"].text
+			puts
+		end
+
+		# each race
+		period.elements.each("race") do |race|
+			race.elements.each("competitor") do |c|
+				puts c.text
+			end
+			puts
+		end
+
+	end
+
+end
+