US Open · R64 · Hard · 1 Sep 1994
Guy Forget v Andre Agassi
130–149 in points · Andre Agassi won
Why it went the way it did
Andre Agassi won 9.9 more points than Guy Forget relative to what the serve alone predicted. Guy Forget's biggest leaks: forehand execution −3.9, slice shot selection −3.5, backhand 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 | Guy Forget | Andre Agassi | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | ±0.0 | ±0.0 | +1.4 | +1.4 | +0.3 | −2.4 | +2.0 | −0.2 |
| Serve 2nd | −0.2 | −1.0 | +0.3 | −0.8 | +0.1 | −0.7 | −0.5 | −1.2 |
| Return | +0.3 | +0.1 | +7.0 | +7.4 | +0.4 | +1.0 | +0.6 | +2.0 |
| Forehand | −0.2 | +2.0 | −3.9 | −2.1 | +0.7 | +1.5 | +2.7 | +4.9 |
| Backhand | −1.1 | +0.7 | −2.1 | −2.5 | ±0.0 | −0.3 | +8.4 | +8.1 |
| Slice | −0.5 | −3.5 | +2.4 | −1.7 | −0.1 | −0.7 | +0.7 | ±0.0 |
| Net | −0.4 | +0.5 | +2.8 | +2.9 | ±0.0 | −0.3 | +0.2 | −0.1 |
| Touch | −0.2 | −1.5 | +0.1 | −1.5 | ±0.0 | −0.5 | −0.2 | −0.7 |
| All shots | −2.2 | −2.8 | +7.9 | +2.9 | +1.3 | −2.3 | +13.9 | +12.9 |
Set by set
| Set | Guy Forget | Andre Agassi | Net, Guy | |
|---|---|---|---|---|
| 1 | −2.9 | +1.4 | −4.3 | |
| 2 | −2.1 | −0.2 | −1.9 | |
| 3 | +6.7 | +7.9 | −1.2 | |
| 4 | +1.3 | +3.8 | −2.6 |
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.
Guy Forget serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 45% 48% | 11% 60% | 45% 48% |
| 2 | 32% 50% | 4% 100% | 64% 56% |
| 3 | 57% 71% | 10% 67% | 33% 60% |
| 4 | 50% 53% | – | 50% 60% |
Set to set +0.78 per 100 first serves in sets 2+
Within sets +0.21 per 100 first serves, every two to three service games
Andre Agassi serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 39% 67% | 4% 0% | 57% 46% |
| 2 | 48% 56% | 9% 67% | 42% 71% |
| 3 | 64% 70% | 6% 100% | 31% 64% |
| 4 | 69% 67% | – | 31% 63% |
Set to set −0.01 per 100 first serves in sets 2+
Within sets +0.49 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.
Guy Forget
19.1 points left on the table across 497 shots 3.85 per 100 shots
- Serve +1: drive to your middle, you at net hit BH volley through the middle ×4; BH volley crosscourt rates higher · 0.79 pts
- Rally, shots 5–8: drive to your backhand side hit BH through the middle ×19; BH crosscourt rates higher · 0.74 pts
- Rally, shots 5–8: drive to your backhand side hit BH slice through the middle ×10; BH slice crosscourt rates higher · 0.73 pts
- Return of a 1st serve, T, ad court hit BH slice through the middle ×7; BH slice inside-in rates higher · 0.68 pts
Andre Agassi
10.9 points left on the table across 495 shots 2.20 per 100 shots
- Long rally, 9+: drive to your backhand side hit BH through the middle ×13; BH crosscourt rates higher · 0.54 pts
- Rally, shots 5–8: drive to your middle hit FH through the middle ×9; FH crosscourt rates higher · 0.51 pts
- Rally, shots 5–8: drive to your backhand side hit BH through the middle ×9; BH crosscourt rates higher · 0.35 pts
- Return of a 1st serve, T, deuce court, server rushing the net hit BH through the middle ×6; BH crosscourt rates higher · 0.29 pts