US Open · R64 · Hard · 2 Sep 2015
Mariana Duque Marino v Oceane Dodin
107–85 in points · Mariana Duque Marino won
Why it went the way it did
Mariana Duque Marino won 11.4 more points than Oceane Dodin relative to what the serve alone predicted. Oceane Dodin's biggest leaks: forehand execution −4.7, serve 2nd execution −3.7, return execution −3.6.
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 | Mariana Duque Marino | Oceane Dodin | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | +0.1 | ±0.0 | +1.5 | +1.6 | ±0.0 | ±0.0 | −1.2 | −1.2 |
| Serve 2nd | −0.1 | ±0.0 | +0.9 | +0.8 | ±0.0 | ±0.0 | −3.7 | −3.7 |
| Return | −0.3 | +0.1 | −4.8 | −4.9 | −0.5 | +0.4 | −3.6 | −3.7 |
| Forehand | −0.7 | +0.6 | +0.3 | +0.3 | −1.0 | +0.7 | −4.7 | −5.0 |
| Backhand | −0.3 | ±0.0 | −0.6 | −1.0 | −0.4 | +0.1 | −1.1 | −1.4 |
| Slice | −0.5 | −2.9 | −1.3 | −4.7 | ±0.0 | −1.0 | +0.5 | −0.5 |
| Net | +0.3 | +0.5 | +1.2 | +2.0 | ±0.0 | +0.1 | +0.1 | +0.3 |
| Touch | ±0.0 | +0.4 | +0.7 | +1.1 | −0.1 | +0.1 | −0.9 | −0.8 |
| All shots | −1.3 | −1.4 | −1.9 | −4.7 | −1.9 | +0.4 | −14.6 | −16.0 |
Set by set
| Set | Mariana Duque Marino | Oceane Dodin | Net, Mariana | |
|---|---|---|---|---|
| 1 | −0.4 | −6.1 | +5.6 | |
| 2 | −5.9 | −4.2 | −1.7 | |
| 3 | +1.7 | −5.8 | +7.5 |
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.
Mariana Duque Marino serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 23% 100% | 23% 80% | 55% 58% |
| 2 | 37% 50% | 12% 50% | 51% 60% |
| 3 | 32% 57% | 14% 100% | 55% 83% |
Set to set +0.21 per 100 first serves in sets 2+
Within sets +0.56 per 100 first serves, every two to three service games
Oceane Dodin serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 25% 50% | 25% 50% | 50% 38% |
| 2 | 30% 50% | 17% 75% | 52% 58% |
| 3 | 30% 45% | 19% 57% | 51% 47% |
Set to set −0.22 per 100 first serves in sets 2+
Within sets +0.44 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.
Mariana Duque Marino
8.9 points left on the table across 265 shots 3.35 per 100 shots
- Return +1: drive to your middle hit FH through the middle ×10; FH down the line rates higher · 0.64 pts
- Return of a 2nd serve, wide, deuce court hit FH through the middle ×4; FH inside-out rates higher · 0.45 pts
- Serve +1: mid-depth return to your middle hit FH through the middle ×5; FH crosscourt rates higher · 0.42 pts
- Rally, shots 5–8: drive to your forehand side hit FH through the middle ×7; FH crosscourt rates higher · 0.38 pts
Oceane Dodin
8.4 points left on the table across 263 shots 3.18 per 100 shots
- Return of a 2nd serve, T, ad court hit FH through the middle ×7; FH inside-in rates higher · 0.57 pts
- Serve +1: mid-depth return to your middle hit FH through the middle ×6; FH crosscourt rates higher · 0.51 pts
- Rally, shots 5–8: drive to your middle hit FH through the middle ×7; FH crosscourt rates higher · 0.49 pts
- Serve +1: short return to your middle hit FH through the middle ×4; FH down the line rates higher · 0.38 pts