Basel · F · Hard · 26 Oct 2008
Roger Federer v David Nalbandian
64–44 in points · Roger Federer won
Why it went the way it did
Roger Federer won 11.6 more points than David Nalbandian relative to what the serve alone predicted. David Nalbandian's biggest leaks: return execution −3.8, backhand execution −1.5, net execution −1.4.
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 | Roger Federer | David Nalbandian | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | −0.2 | ±0.0 | +0.5 | +0.3 | −0.4 | −0.1 | +0.3 | −0.2 |
| Serve 2nd | ±0.0 | ±0.0 | +1.2 | +1.2 | +0.1 | −0.1 | −0.8 | −0.8 |
| Return | −0.2 | +0.1 | +2.3 | +2.2 | +0.1 | −0.4 | −3.8 | −4.1 |
| Forehand | −0.2 | +1.6 | +0.2 | +1.7 | −0.4 | +0.9 | +0.6 | +1.1 |
| Backhand | −0.4 | −0.1 | −0.4 | −0.8 | ±0.0 | −0.5 | −1.5 | −2.1 |
| Slice | −0.1 | −1.4 | ±0.0 | −1.5 | −0.1 | −1.0 | −0.3 | −1.4 |
| Net | −0.2 | +0.2 | +0.5 | +0.5 | ±0.0 | ±0.0 | −1.4 | −1.4 |
| Touch | ±0.0 | −0.9 | −0.3 | −1.1 | +0.1 | −0.6 | +0.1 | −0.4 |
| All shots | −1.1 | −0.6 | +4.0 | +2.3 | −0.7 | −1.7 | −6.9 | −9.3 |
Set by set
| Set | Roger Federer | David Nalbandian | Net, Roger | |
|---|---|---|---|---|
| 1 | +2.0 | −4.7 | +6.8 | |
| 2 | +0.3 | −4.6 | +4.9 |
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.
Roger Federer serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 39% 78% | 22% 80% | 39% 100% |
| 2 | 43% 100% | 13% 100% | 43% 60% |
Within sets +0.37 per 100 first serves, every two to three service games
David Nalbandian serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 41% 62% | 22% 43% | 38% 67% |
| 2 | 52% 67% | 21% 50% | 28% 63% |
Set to set +0.20 per 100 first serves in sets 2+
Within sets −0.70 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.
Roger Federer
5.5 points left on the table across 182 shots 3.00 per 100 shots
- Rally, shots 5–8: drive to your forehand side, you at net hit FH volley through the middle ×1; FH volley crosscourt rates higher · 0.28 pts
- Return +1: drive to your backhand side hit BH slice through the middle ×3; BH slice crosscourt rates higher · 0.25 pts
- Long rally, 9+: lob to your backhand side, you at net hit BH smash through the middle ×1; BH smash crosscourt rates higher · 0.23 pts
- Rally, shots 5–8: volley to your forehand side, opponent at net hit FH slice through the middle ×1; FH slice down the line rates higher · 0.21 pts
David Nalbandian
5.1 points left on the table across 176 shots 2.91 per 100 shots
- Rally, shots 5–8: drive to your middle hit FH through the middle ×4; FH crosscourt rates higher · 0.23 pts
- Return +1: drive to your forehand side, opponent at net hit FH through the middle ×2; FH crosscourt rates higher · 0.21 pts
- Rally, shots 5–8: drive to your forehand side hit FH through the middle ×4; FH crosscourt rates higher · 0.20 pts
- Rally, shots 5–8: lob to your middle, you at net hit Smash through the middle ×1; Smash crosscourt rates higher · 0.19 pts