Strasbourg · R32 · Clay · 16 May 2022
Aliaksandra Sasnovich v Julie Gervais
69–55 in points · Aliaksandra Sasnovich won
Why it went the way it did
Aliaksandra Sasnovich won 8.3 more points than Julie Gervais relative to what the serve alone predicted. Julie Gervais's biggest leaks: serve 2nd execution −4.9, backhand execution −2.2, forehand execution −2.1.
Each shot moves its hitter's chance of winning the point. Those moves are split into direction choice, shot selection and execution, and summed here. Read both columns together: one player's gain is the other's loss.
| Shot | Aliaksandra Sasnovich | Julie Gervais | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | +0.2 | ±0.0 | −0.6 | −0.4 | −0.3 | ±0.0 | −0.5 | −0.8 |
| Serve 2nd | +0.1 | ±0.0 | +1.9 | +2.0 | −0.1 | ±0.0 | −4.9 | −5.1 |
| Return | ±0.0 | +0.7 | −1.3 | −0.6 | +0.3 | +0.5 | −0.6 | +0.2 |
| Forehand | +0.1 | +0.7 | −2.5 | −1.6 | −0.2 | +0.6 | −2.1 | −1.8 |
| Backhand | +0.1 | −0.2 | −1.7 | −1.8 | −0.6 | +0.2 | −2.2 | −2.6 |
| Slice | +0.1 | −0.4 | −1.1 | −1.4 | ±0.0 | −0.4 | +0.3 | −0.1 |
| Net | +0.1 | ±0.0 | −0.2 | −0.1 | ±0.0 | ±0.0 | ±0.0 | ±0.0 |
| Touch | ±0.0 | +0.2 | +1.8 | +2.1 | ±0.0 | ±0.0 | ±0.0 | ±0.0 |
| All shots | +0.8 | +1.1 | −3.7 | −1.7 | −0.9 | +0.9 | −10.1 | −10.1 |
Set by set
| Set | Aliaksandra Sasnovich | Julie Gervais | Net, Aliaksandra | |
|---|---|---|---|---|
| 1 | −3.6 | −6.9 | +3.2 | |
| 2 | +1.9 | −3.2 | +5.1 |
Adaptation
First-serve direction mix set by set, with the share of points each direction won. The scores measure whether the server moved toward the directions that had been winning earlier in this match, set to set and every two to three service games, in points per 100 first serves. Read them as a habit, not a gain: across the tour, a direction's edge in early sets barely predicts the later ones. Whether the returner responded can't be told apart from noise within one match.
Aliaksandra Sasnovich serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 61% 58% | 3% 0% | 35% 55% |
| 2 | 57% 62% | 22% 40% | 22% 100% |
Set to set −0.36 per 100 first serves in sets 2+
Within sets +0.46 per 100 first serves, every two to three service games
Julie Gervais serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 18% 13% | 32% 64% | 50% 50% |
| 2 | 17% 75% | 29% 43% | 54% 38% |
Set to set +0.09 per 100 first serves in sets 2+
Within sets −0.45 per 100 first serves, every two to three service games
Counterfactual: the best direction every time
If each shot had gone in the direction that is usually worth most for that stroke and position, this is how many more points each player would expect to win. It's an upper bound: the best direction isn't always on, and the chart can't see the ball's pace or position.
Aliaksandra Sasnovich
2.8 points left on the table across 146 shots 1.95 per 100 shots
- Return of a 2nd serve, body, ad court hit BH through the middle ×3; BH down the line rates higher · 0.19 pts
- Serve +1: short return to your backhand side hit BH through the middle ×2; BH down the line rates higher · 0.17 pts
- Rally, shots 5–8: drive to your forehand side hit FH through the middle ×3; FH crosscourt rates higher · 0.16 pts
- Serve +1: mid-depth return to your backhand side hit BH through the middle ×2; BH down the line rates higher · 0.14 pts
Julie Gervais
4.1 points left on the table across 139 shots 2.96 per 100 shots
- Rally, shots 5–8: drive to your backhand side hit BH through the middle ×7; BH crosscourt rates higher · 0.30 pts
- Serve +1: mid-depth return to your backhand side hit BH through the middle ×4; BH down the line rates higher · 0.28 pts
- Return +1: drive to your middle hit FH through the middle ×4; FH down the line rates higher · 0.26 pts
- Serve +1: mid-depth return to your middle hit FH through the middle ×3; FH crosscourt rates higher · 0.25 pts