New Haven · SF · Hard · 28 Aug 2015
Lesia Tsurenko v Lucie Safarova
57–74 in points · Lucie Safarova won
Why it went the way it did
Lucie Safarova won 8.5 more points than Lesia Tsurenko relative to what the serve alone predicted. Lesia Tsurenko's biggest leaks: backhand execution −3.0, slice shot selection −1.9, return execution −1.8.
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 | Lesia Tsurenko | Lucie Safarova | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | −0.3 | ±0.0 | +0.6 | +0.3 | +0.1 | ±0.0 | ±0.0 | +0.1 |
| Serve 2nd | ±0.0 | ±0.0 | −1.7 | −1.7 | ±0.0 | ±0.0 | +0.6 | +0.6 |
| Return | +0.2 | −1.0 | −1.8 | −2.6 | −0.5 | +0.2 | +0.9 | +0.5 |
| Forehand | −1.2 | +1.0 | −0.4 | −0.5 | −0.5 | +0.9 | −2.0 | −1.7 |
| Backhand | −0.6 | +0.5 | −3.0 | −3.1 | −0.9 | −0.2 | −2.0 | −3.1 |
| Slice | −0.1 | −1.9 | +0.2 | −1.8 | ±0.0 | −0.3 | −0.2 | −0.5 |
| Net | ±0.0 | ±0.0 | −0.5 | −0.5 | +0.1 | +0.5 | +0.8 | +1.4 |
| Touch | −0.1 | −0.9 | −0.7 | −1.6 | +0.1 | −0.2 | −0.3 | −0.5 |
| All shots | −2.1 | −2.2 | −7.3 | −11.6 | −1.7 | +0.8 | −2.2 | −3.0 |
Set by set
| Set | Lesia Tsurenko | Lucie Safarova | Net, Lesia | |
|---|---|---|---|---|
| 1 | −6.8 | −1.0 | −5.8 | |
| 2 | −4.8 | −2.1 | −2.7 |
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.
Lesia Tsurenko serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 38% 50% | 42% 55% | 19% 40% |
| 2 | 43% 29% | 23% 44% | 35% 50% |
Within sets −1.04 per 100 first serves, every two to three service games
Lucie Safarova serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 33% 86% | 5% 100% | 62% 69% |
| 2 | 32% 29% | 18% 50% | 50% 59% |
Within sets −0.22 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.
Lesia Tsurenko
7.8 points left on the table across 258 shots 3.04 per 100 shots
- Long rally, 9+: drive to your middle hit FH through the middle ×8; FH down the line rates higher · 0.57 pts
- Rally, shots 5–8: drive to your middle hit FH through the middle ×8; FH crosscourt rates higher · 0.56 pts
- Rally, shots 5–8: drive to your middle hit BH through the middle ×10; BH crosscourt rates higher · 0.47 pts
- Rally, shots 5–8: drive to your backhand side hit BH through the middle ×10; BH crosscourt rates higher · 0.43 pts
Lucie Safarova
8.4 points left on the table across 254 shots 3.31 per 100 shots
- Rally, shots 5–8: drive to your middle hit BH through the middle ×10; BH crosscourt rates higher · 0.47 pts
- Long rally, 9+: drive to your backhand side hit BH through the middle ×9; BH crosscourt rates higher · 0.47 pts
- Long rally, 9+: drive to your middle hit BH through the middle ×8; BH down the line rates higher · 0.44 pts
- Serve +1: deep return to your middle hit FH through the middle ×7; FH crosscourt rates higher · 0.42 pts