Archive of the ChessML project, circa 2010.
Participation in the 2010 Kaggle chess rating competition.
This competition aims to discover whether other approaches can predict the outcome of chess games more accurately than the workhorse Elo rating system.
I believe I came 17th on the private leaderboard.
A suite of chess rating algorithms were implemented in Java, such as: elo, glicko, chessmetrics, etc.
All of the code seems to have been lost.
A gist of the Glicko algorithm I wrote was captured by the internet archive here: