Chess ratings: expected score by rating advantage
A player rated 200 points above the opponent is expected to score 76% of the points; at 400 points it is 91%.
What does this axis measure?
Expected score (%)
What does this axis measure?
Rating advantage (points)
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- Expected score (%)
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- Rating advantage (points)
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The data: 33 points
| Rating advantage (points) | Expected score (%) |
|---|---|
| −800 | 1 |
| −750 | 1.3 |
| −700 | 1.7 |
| −650 | 2.3 |
| −600 | 3.1 |
| −550 | 4 |
| −500 | 5.3 |
| −450 | 7 |
| −400 | 9.1 |
| −350 | 11.8 |
| −300 | 15.1 |
| −250 | 19.2 |
| −200 | 24 |
| −150 | 29.7 |
| −100 | 36 |
| −50 | 42.9 |
| 0 | 50 |
| 50 | 57.1 |
| 100 | 64 |
| 150 | 70.3 |
| 200 | 76 |
| 250 | 80.8 |
| 300 | 84.9 |
| 350 | 88.2 |
| 400 | 90.9 |
| 450 | 93 |
| 500 | 94.7 |
| 550 | 96 |
| 600 | 96.9 |
| 650 | 97.7 |
| 700 | 98.3 |
| 750 | 98.7 |
| 800 | 99 |
- Ran in puzzle #13 on October 9, 2026. Play it
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