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NASPA Rating Calculator
Enter all required information as indicated, then click on the Calculate button to see a player’s new rating after a tournament. If a player has not played fifty games in his or her career, their rating will change by a greater amount; this is taken into account if you specify the player by name and not by rating.
Players may earn feedback bonus points for playing opponents who earned acceleration bonus points: this tool does not perform this calculation. Tournaments of more than 16 rounds are split into segments and rated separately: the results computed here may be misleading because we assume all player wins come before losses, and opponent ratings will not be updated after each segment. If you need to perform more sophisticated computations, please use the tsh tournament management program.