Cincinnati Masters · SF · Hard · 11 Aug 2003
Andy Roddick v Max Mirnyi
69–61 in points · Andy Roddick won
Why it went the way it did
Andy Roddick won 3.7 more points than Max Mirnyi relative to what the serve alone predicted. Max Mirnyi's biggest leaks: return execution −1.4, touch execution −1.1, serve 2nd execution −1.0.
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 | Andy Roddick | Max Mirnyi | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | +0.3 | −0.2 | +3.7 | +3.7 | −0.3 | +1.4 | +0.3 | +1.4 |
| Serve 2nd | ±0.0 | −0.1 | +0.7 | +0.7 | +0.1 | +0.8 | −1.0 | −0.1 |
| Return | ±0.0 | +0.6 | +0.4 | +1.0 | −0.1 | +1.2 | −1.4 | −0.3 |
| Forehand | −0.1 | +1.2 | +0.6 | +1.7 | −0.2 | +0.1 | +0.2 | +0.2 |
| Backhand | +0.2 | +0.7 | +0.4 | +1.2 | ±0.0 | ±0.0 | −0.4 | −0.4 |
| Slice | ±0.0 | −0.8 | +0.1 | −0.8 | ±0.0 | −0.3 | +0.4 | ±0.0 |
| Net | +0.1 | ±0.0 | ±0.0 | +0.1 | ±0.0 | −0.3 | +4.6 | +4.3 |
| Touch | ±0.0 | −0.2 | −0.3 | −0.5 | ±0.0 | −0.4 | −1.1 | −1.6 |
| All shots | +0.5 | +1.2 | +5.6 | +7.2 | −0.6 | +2.4 | +1.7 | +3.5 |
Set by set
| Set | Andy Roddick | Max Mirnyi | Net, Andy | |
|---|---|---|---|---|
| 1 | +4.1 | +1.8 | +2.3 | |
| 2 | +3.2 | +1.7 | +1.4 |
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.
Andy Roddick serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 59% 80% | – | 41% 86% |
| 2 | 38% 75% | 3% 100% | 59% 68% |
Set to set +1.16 per 100 first serves in sets 2+
Within sets +0.19 per 100 first serves, every two to three service games
Max Mirnyi serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 47% 71% | 28% 80% | 25% 78% |
| 2 | 39% 82% | 7% 0% | 54% 67% |
Set to set −1.53 per 100 first serves in sets 2+
Within sets +0.62 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.
Andy Roddick
4.0 points left on the table across 115 shots 3.51 per 100 shots
- Return +1: volley to your middle, opponent at net hit FH through the middle ×2; FH crosscourt rates higher · 0.33 pts
- Return of a 1st serve, wide, ad court, server rushing the net hit BH through the middle ×4; BH crosscourt rates higher · 0.31 pts
- Return of a 2nd serve, wide, ad court, server rushing the net hit BH through the middle ×3; BH crosscourt rates higher · 0.28 pts
- Rally, shots 5–8: volley to your forehand side, opponent at net hit FH through the middle ×1; FH crosscourt rates higher · 0.24 pts
Max Mirnyi
6.6 points left on the table across 116 shots 5.69 per 100 shots
- Serve +1: short return to your forehand side, you at net hit FH volley through the middle ×3; FH volley crosscourt rates higher · 0.74 pts
- Return +1: drive to your forehand side, you at net hit FH volley through the middle ×2; FH volley crosscourt rates higher · 0.72 pts
- Serve +1: mid-depth return to your middle, you at net hit BH volley through the middle ×2; BH volley crosscourt rates higher · 0.50 pts
- Return of a 2nd serve, T, deuce court hit BH slice through the middle + approach ×3; BH slice down the line + approach rates higher · 0.29 pts