Miami · QF · Hard · 27 Mar 2003
Kim Clijsters v Jelena Dokic
60–38 in points · Kim Clijsters won
Why it went the way it did
Kim Clijsters won 11.7 more points than Jelena Dokic relative to what the serve alone predicted. Jelena Dokic's biggest leaks: net execution −2.9, serve 1st execution −1.9, forehand execution −1.7.
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 | Kim Clijsters | Jelena Dokic | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | +0.2 | ±0.0 | −0.8 | −0.6 | +0.4 | −0.1 | −1.9 | −1.6 |
| Serve 2nd | +0.1 | ±0.0 | −0.1 | −0.1 | +0.1 | ±0.0 | −0.4 | −0.3 |
| Return | +0.1 | ±0.0 | +1.0 | +1.1 | +0.3 | +0.1 | −0.6 | −0.2 |
| Forehand | +0.3 | +1.0 | +1.3 | +2.6 | +0.9 | +1.1 | −1.7 | +0.3 |
| Backhand | +0.1 | +0.4 | +3.9 | +4.4 | +0.3 | −0.2 | −0.8 | −0.8 |
| Slice | −0.1 | −3.2 | +1.5 | −1.8 | −0.1 | −0.8 | −0.2 | −1.1 |
| Net | −0.1 | ±0.0 | −0.2 | −0.4 | +0.1 | +0.4 | −2.9 | −2.4 |
| Touch | −0.1 | −1.0 | +0.8 | −0.3 | +0.2 | −0.3 | −0.4 | −0.6 |
| All shots | +0.6 | −2.8 | +7.3 | +5.1 | +2.0 | +0.2 | −8.8 | −6.6 |
Set by set
| Set | Kim Clijsters | Jelena Dokic | Net, Kim | |
|---|---|---|---|---|
| 1 | +0.9 | −3.1 | +4.0 | |
| 2 | +4.2 | −3.5 | +7.7 |
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.
Kim Clijsters serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 54% 57% | 8% 50% | 38% 90% |
| 2 | 56% 78% | 6% 100% | 38% 67% |
Within sets −0.21 per 100 first serves, every two to three service games
Jelena Dokic serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 42% 47% | – | 58% 57% |
| 2 | 32% 0% | 11% 50% | 58% 45% |
Set to set +0.28 per 100 first serves in sets 2+
Within sets +0.57 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.
Kim Clijsters
5.0 points left on the table across 189 shots 2.63 per 100 shots
- Return +1: drive to your forehand side hit FH through the middle ×5; FH crosscourt rates higher · 0.32 pts
- Rally, shots 5–8: lob to your middle, you at net hit Smash through the middle ×1; Smash crosscourt rates higher · 0.25 pts
- Rally, shots 5–8: drive to your forehand side hit FH through the middle ×4; FH crosscourt rates higher · 0.22 pts
- Return of a 2nd serve, wide, deuce court hit FH down the line ×2; FH inside-out rates higher · 0.20 pts
Jelena Dokic
3.7 points left on the table across 179 shots 2.08 per 100 shots
- Rally, shots 5–8: lob to your backhand side, you at net hit BH volley through the middle ×1; BH volley down the line rates higher · 0.27 pts
- Return of a 2nd serve, wide, deuce court hit FH crosscourt ×4; FH inside-out rates higher · 0.23 pts
- Rally, shots 5–8: drive to your backhand side hit BH through the middle ×5; BH crosscourt rates higher · 0.21 pts
- Long rally, 9+: drive to your backhand side hit BH through the middle ×3; BH crosscourt rates higher · 0.16 pts