Performance Rating Calculator

Calculate your tournament performance rating (TPR) with the FIDE dp table, the linear rule of 400 and an exact Elo solution from your opponents and score.

The interactive performance rating calculator loads here. It runs in your browser and is free to use.

What is a performance rating?

Your performance rating (often written TPR, tournament performance rating) answers one question: what rating would a player need to score exactly what you scored against exactly these opponents? It describes one event, not your long-term strength, so it can be hundreds of points away from your real rating after a great or terrible tournament.

The calculator shows three common methods side by side.

• FIDE method. Work out your percentage score p, round it to the nearest whole percent, and look up dp in the FIDE table (for example 72% gives +166, 50% gives 0, 25% gives −193). Performance = average opponent rating + dp. This is the method used for title norms and most tournament crosstables.
• Linear rule of 400. Performance = average opponent rating + 400 × (wins − losses) ÷ games. It is easy to do in your head and gives similar numbers for normal scores, but it stretches further for very high or very low scores.
• Exact Elo. The rating whose Elo expected score against your actual opponents adds up to your actual score. It respects the spread of opponents, so beating one very weak player counts for less than beating an average one.

Worked example

You score 6½ out of 9 against opponents averaging 2450.

• p = 6.5 ÷ 9 = 0.722, rounded to 0.72, so dp = 166 and the FIDE performance is 2616.
• With 5 wins, 3 draws and 1 loss, the linear formula gives 2450 + 400 × 4 ÷ 9 ≈ 2628.
• The exact Elo solution is about 2616, because the opponents were close together.

Tips

You can enter each opponent separately or just the average and your score. A perfect score has no finite exact performance; FIDE caps it at average + 800 and the linear rule at average + 400.