Tennis: the chance of winning a game, by the chance of winning each point
A player who wins 55% of the points wins 62% of the games; at 70% of the points it is 90% of the games. The curve assumes every point is won with the same chance, each independent of the others.
What does this axis measure?
Chance of winning the game (%)
What does this axis measure?
Chance of winning a point (%)
Reveal the axesHide the axes
- y ↑
- Chance of winning the game (%)
- x →
- Chance of winning a point (%)
Show the story, the data and the sourceHide the story, the data and the source
The data: 21 points
| Chance of winning a point (%) | Chance of winning the game (%) |
|---|---|
| 0 | 0 |
| 5 | 0.01 |
| 10 | 0.14 |
| 15 | 0.71 |
| 20 | 2.18 |
| 25 | 5.08 |
| 30 | 9.92 |
| 35 | 17.04 |
| 40 | 26.43 |
| 45 | 37.69 |
| 50 | 50 |
| 55 | 62.31 |
| 60 | 73.57 |
| 65 | 82.96 |
| 70 | 90.08 |
| 75 | 94.92 |
| 80 | 97.82 |
| 85 | 99.29 |
| 90 | 99.86 |
| 95 | 99.99 |
| 100 | 100 |
- Ran in puzzle #21 on October 17, 2026. Play it