AGA Ratings Information

The AGA Rating System, unlike some other systems, does not merely tally results and award or remove fixed numbers of points from the player's total. Based on advanced statistical procedures, it looks at results of many events simultaneously, using the results to figure out how likely each player was to defeat the other. Players are ranked and ordered according to these calculations.

Here is more information on how the system works and answers to the most commonly asked questions about the ratings system. AGA Ratings Statistician Paul Matthews has also developed tournament software that utilizes the same algorithm to generate pairings. To learn more about the AccelRat software #broken link#.

The AGA rates serious games, mainly from face-to-face tournament and club play. The basic qualifications for rated games are probably easier to meet than you might think, and the AGA encourages you to submit your game results. Learn how to submit game results to the rating system.

You can find an individual rating or get a list of ratings satisfying your selection criteria by clicking the button below.

Ratings were last updated 10/31/2009 11:00:00 PM (US Eastern time zone, GMT -5). Check the list of recently rated tournaments to see whether your tournament has been rated. Membership data was last updated 10/31/2009 11:00:00 PM.

You can use a ratings query to get a text file traditionally known as a "TD List". Two formats are available: the older "TDListN" format has fixed width data fields padded with spaces, and "TDListA" has tab-separated fields and more precise ratings (which are too wide for the TDListN format) plus two additional fields that provide the statistical accuracy and date of each rating. When your query is complete, your can use your browser's "save as" function to save query results as a text file, naming this file appropriately (e.g., "myTDList.txt"). Alternatively, you can simply download a text file, TDListA.txt, that has already been created.