WTA Championships · F · Hard · 13 Nov 2005
Amelie Mauresmo v Mary Pierce
124–122 in points · Amelie Mauresmo won
Why it went the way it did
Mary Pierce won 1.4 more points than Amelie Mauresmo relative to what the serve alone predicted. Amelie Mauresmo's biggest leaks: slice shot selection −6.4, return shot selection −3.9, net execution −2.3.
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 | Amelie Mauresmo | Mary Pierce | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | +1.2 | ±0.0 | −1.3 | ±0.0 | +0.6 | −0.1 | +0.4 | +0.9 |
| Serve 2nd | +0.2 | ±0.0 | +3.0 | +3.1 | ±0.0 | ±0.0 | +2.4 | +2.4 |
| Return | −0.3 | −3.9 | ±0.0 | −4.2 | +0.3 | −0.2 | −2.9 | −2.8 |
| Forehand | +0.4 | +3.9 | +5.1 | +9.5 | +1.4 | +2.1 | −0.2 | +3.4 |
| Backhand | ±0.0 | +0.1 | +2.5 | +2.6 | +1.3 | +0.9 | +3.1 | +5.2 |
| Slice | +0.8 | −6.4 | +0.2 | −5.3 | ±0.0 | −1.5 | −1.2 | −2.7 |
| Net | +0.6 | +0.6 | −2.3 | −1.2 | +0.2 | +0.1 | −0.4 | −0.1 |
| Touch | ±0.0 | −1.5 | +0.3 | −1.2 | −0.6 | −1.7 | +0.4 | −1.8 |
| All shots | +2.9 | −7.2 | +7.4 | +3.2 | +3.3 | −0.2 | +1.5 | +4.6 |
Set by set
| Set | Amelie Mauresmo | Mary Pierce | Net, Amelie | |
|---|---|---|---|---|
| 1 | +2.3 | +6.0 | −3.6 | |
| 2 | +2.3 | +1.2 | +1.1 | |
| 3 | −1.5 | −2.6 | +1.2 |
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.
Amelie Mauresmo serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 49% 54% | 2% 100% | 49% 54% |
| 2 | 61% 65% | 2% 0% | 37% 68% |
| 3 | 69% 59% | – | 31% 58% |
Set to set −0.22 per 100 first serves in sets 2+
Within sets −0.28 per 100 first serves, every two to three service games
Mary Pierce serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 71% 71% | 6% 50% | 24% 50% |
| 2 | 59% 58% | 9% 50% | 32% 79% |
| 3 | 60% 60% | 8% 50% | 32% 50% |
Set to set −0.07 per 100 first serves in sets 2+
Within sets −0.25 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.
Amelie Mauresmo
12.4 points left on the table across 469 shots 2.64 per 100 shots
- Rally, shots 5–8: drive to your forehand side hit FH through the middle ×19; FH crosscourt rates higher · 1.03 pts
- Return of a 1st serve, wide, ad court hit BH slice through the middle ×10; BH slice crosscourt rates higher · 0.61 pts
- Long rally, 9+: drive to your forehand side hit FH through the middle ×7; FH crosscourt rates higher · 0.39 pts
- Long rally, 9+: drive to your backhand side hit BH slice through the middle ×7; BH slice crosscourt rates higher · 0.37 pts
Mary Pierce
11.8 points left on the table across 502 shots 2.36 per 100 shots
- Return of a 2nd serve, wide, deuce court hit FH through the middle ×7; FH inside-out rates higher · 0.80 pts
- Return of a 2nd serve, wide, deuce court hit FH crosscourt ×12; FH inside-out rates higher · 0.68 pts
- Rally, shots 5–8: slice to your backhand side hit BH through the middle ×3; BH down the line rates higher · 0.32 pts
- Rally, shots 5–8: drive to your backhand side hit BH lob down the line ×2; BH lob crosscourt rates higher · 0.29 pts