US Open · R64 · Hard · 31 Aug 2006
Marat Safin v David Nalbandian
159–161 in points · Marat Safin won
Why it went the way it did
Marat Safin won 1.6 more points than David Nalbandian relative to what the serve alone predicted. David Nalbandian's biggest leaks: slice shot selection −3.5, serve 2nd execution −3.2, backhand execution −2.7.
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 | Marat Safin | David Nalbandian | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | +0.1 | −0.5 | +1.6 | +1.2 | +0.2 | −0.6 | −2.6 | −3.0 |
| Serve 2nd | +0.1 | −0.2 | −0.4 | −0.5 | −0.1 | −0.2 | −3.2 | −3.5 |
| Return | −0.2 | +1.4 | −4.3 | −3.2 | +0.3 | +0.3 | −2.2 | −1.6 |
| Forehand | −1.1 | +1.8 | −3.0 | −2.3 | −0.3 | +2.4 | +4.6 | +6.7 |
| Backhand | +0.1 | −0.4 | +0.1 | −0.2 | −0.1 | −0.7 | −2.7 | −3.6 |
| Slice | −0.3 | −2.9 | −0.5 | −3.7 | −0.4 | −3.5 | ±0.0 | −3.9 |
| Net | +0.1 | +0.2 | +2.0 | +2.3 | +0.3 | −0.1 | −0.1 | +0.1 |
| Touch | +0.2 | −1.0 | −1.3 | −2.1 | −0.1 | −1.3 | +0.4 | −1.0 |
| Other | ±0.0 | ±0.0 | ±0.0 | ±0.0 | −0.1 | −0.3 | ±0.0 | −0.4 |
| All shots | −1.0 | −1.5 | −6.0 | −8.5 | −0.3 | −4.0 | −5.8 | −10.1 |
Set by set
| Set | Marat Safin | David Nalbandian | Net, Marat | |
|---|---|---|---|---|
| 1 | +3.2 | −1.8 | +5.0 | |
| 2 | −5.5 | −8.0 | +2.5 | |
| 3 | −2.4 | +1.6 | −4.1 | |
| 4 | −2.0 | +2.6 | −4.6 | |
| 5 | −1.7 | −4.5 | +2.8 |
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.
Marat Safin serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 43% 80% | 4% 100% | 52% 83% |
| 2 | 47% 55% | 12% 40% | 42% 83% |
| 3 | 47% 44% | 5% 100% | 47% 56% |
| 4 | 40% 60% | 8% 100% | 52% 38% |
| 5 | 56% 73% | 5% 50% | 38% 67% |
Set to set −0.19 per 100 first serves in sets 2+
Within sets −0.57 per 100 first serves, every two to three service games
David Nalbandian serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 30% 29% | 17% 50% | 52% 83% |
| 2 | 48% 67% | 6% 67% | 46% 52% |
| 3 | 18% 75% | 5% 100% | 77% 71% |
| 4 | 42% 60% | 4% 100% | 54% 77% |
| 5 | 38% 71% | 7% 67% | 56% 56% |
Set to set +0.03 per 100 first serves in sets 2+
Within sets +0.11 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.
Marat Safin
13.3 points left on the table across 550 shots 2.41 per 100 shots
- Rally, shots 5–8: drive to your middle hit FH through the middle ×11; FH crosscourt rates higher · 0.63 pts
- Return of a 1st serve, wide, deuce court hit FH down the line ×9; FH crosscourt rates higher · 0.63 pts
- Rally, shots 5–8: drive to your forehand side hit FH through the middle ×11; FH crosscourt rates higher · 0.56 pts
- Serve +1: mid-depth return to your middle hit FH through the middle ×6; FH crosscourt rates higher · 0.52 pts
David Nalbandian
12.8 points left on the table across 528 shots 2.43 per 100 shots
- Return +1: drive to your forehand side hit FH through the middle ×10; FH crosscourt rates higher · 0.59 pts
- Rally, shots 5–8: drive to your forehand side hit FH through the middle ×10; FH crosscourt rates higher · 0.51 pts
- Return +1: drive to your middle hit FH through the middle ×8; FH crosscourt rates higher · 0.47 pts
- Return of a 2nd serve, T, ad court hit FH through the middle ×5; FH inside-out rates higher · 0.46 pts