Tournament Performance Rating Calculator (FIDE)
Enter the average rating of your opponents, games played and points scored to get your tournament performance rating — computed with table 8.1a of the FIDE handbook, the same table used for title norms.
How performance rating is calculated
FIDE defines tournament performance rating as:
Rp = Ra + dp
where Ra is the average rating of your opponents and dp is looked up from your fractional score p = points ÷ games, rounded to the nearest 0.01 and converted with handbook table 8.1a. A 50% score gives dp = 0, 67% gives +125, and a perfect score is capped at +800. The table is symmetric: p and 1 − p give opposite dp values.
Example: 9-game tournament against 2000-rated opposition
| Points | Score p (rounded) | dp | Performance rating |
|---|---|---|---|
| 3 | 0.33 | −125 | 1875 |
| 4.5 | 0.50 | 0 | 2000 |
| 5 | 0.56 | +43 | 2043 |
| 6 | 0.67 | +125 | 2125 |
| 7 | 0.78 | +220 | 2220 |
FIDE dp table (abridged)
Every 0.05 step of the full 101-row table; the calculator uses the complete table.
| p | dp | p | dp |
|---|---|---|---|
| 0.00 | −800 | 0.55 | +36 |
| 0.05 | −470 | 0.60 | +72 |
| 0.10 | −366 | 0.65 | +110 |
| 0.15 | −296 | 0.70 | +149 |
| 0.20 | −240 | 0.75 | +193 |
| 0.25 | −193 | 0.80 | +240 |
| 0.30 | −149 | 0.85 | +296 |
| 0.35 | −110 | 0.90 | +366 |
| 0.40 | −72 | 0.95 | +470 |
| 0.45 | −36 | 1.00 | +800 |
| 0.50 | 0 |
Frequently asked questions
What is performance rating used for?
Mainly title norms: a GM norm requires a performance of at least 2600, an IM norm 2450 (plus conditions on opponents). It is also a quick check — a performance above your own rating means the tournament gains you points.
Why does a 100% score give exactly +800?
A perfect score has no finite performance rating, so FIDE caps the table at dp = ±800. Winning every game against 2000-rated opposition gives exactly 2800, no matter how many games.
How is this different from rating change?
Rating change tells you how many Elo points you gain or lose relative to your own rating; performance rating ignores your rating and only describes the level you played at in this event. See the Elo change calculator for the former.
Learn more in the guide: How FIDE Ratings Work