Performance Rating Calculators
Calculate TPR, CPR and Perfect Score Performance Ratings
TPR & CPR Calculator
Calculate Tournament Performance Rating (TPR) and Complete Performance Rating (CPR) from your game results.
Enter values and click Calculate...
Perfect Score Performance Rating
Calculate the exact Performance Rating for a perfect score (winning all games) against specific opponents. This finds the optimal subset that maximizes the performance rating.
Enter opponent ratings and click Calculate...
Note: This calculation uses Pyodide to run Python in your browser. The first calculation may take a few seconds to load. See About page for formula details.