Indian Wells Masters · SF · Hard · 19 Mar 2016
Rafael Nadal v Novak Djokovic
70–83 in points · Novak Djokovic won
Why it went the way it did
Novak Djokovic won 11.2 more points than Rafael Nadal relative to what the serve alone predicted. Rafael Nadal's biggest leaks: slice shot selection −2.3, serve 1st direction choices −1.4, backhand 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 | Rafael Nadal | Novak Djokovic | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | −1.4 | −0.2 | +0.8 | −0.8 | ±0.0 | −0.1 | −0.5 | −0.6 |
| Serve 2nd | −0.1 | ±0.0 | +0.8 | +0.7 | +0.1 | ±0.0 | −0.7 | −0.7 |
| Return | +0.1 | +0.7 | −0.1 | +0.7 | −0.5 | +1.3 | +2.2 | +3.0 |
| Forehand | +1.3 | +2.2 | −0.3 | +3.3 | +0.6 | +2.2 | +2.7 | +5.5 |
| Backhand | −0.1 | +0.4 | −1.4 | −1.1 | −0.3 | +0.7 | +4.9 | +5.3 |
| Slice | −0.5 | −2.3 | +0.8 | −2.0 | −0.1 | −1.0 | +0.4 | −0.8 |
| Net | ±0.0 | +0.4 | −0.5 | −0.1 | −0.3 | +0.3 | +0.4 | +0.4 |
| Touch | ±0.0 | ±0.0 | ±0.0 | ±0.0 | +0.1 | −1.2 | +1.0 | −0.1 |
| All shots | −0.7 | +1.3 | +0.2 | +0.8 | −0.5 | +2.1 | +10.4 | +12.0 |
Set by set
| Set | Rafael Nadal | Novak Djokovic | Net, Rafael | |
|---|---|---|---|---|
| 1 | +4.3 | +5.8 | −1.5 | |
| 2 | −3.5 | +6.2 | −9.7 |
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.
Rafael Nadal serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 28% 38% | 38% 83% | 34% 50% |
| 2 | 30% 36% | 41% 53% | 28% 62% |
Set to set +1.08 per 100 first serves in sets 2+
Within sets +0.83 per 100 first serves, every two to three service games
Novak Djokovic serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 55% 64% | 13% 60% | 33% 62% |
| 2 | 45% 78% | 5% 100% | 50% 80% |
Set to set −0.32 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.
Rafael Nadal
8.7 points left on the table across 355 shots 2.46 per 100 shots
- Return of a 1st serve, T, deuce court hit FH through the middle ×5; FH inside-out rates higher · 0.53 pts
- Return of a 1st serve, wide, ad court hit FH through the middle ×4; FH inside-out rates higher · 0.42 pts
- Rally, shots 5–8: drive to your backhand side hit BH through the middle ×10; BH crosscourt rates higher · 0.39 pts
- Long rally, 9+: drive to your backhand side hit BH slice down the line ×5; BH slice crosscourt rates higher · 0.32 pts
Novak Djokovic
8.0 points left on the table across 378 shots 2.11 per 100 shots
- Rally, shots 5–8: drive to your backhand side hit BH through the middle ×15; BH crosscourt rates higher · 0.58 pts
- Long rally, 9+: drive to your backhand side hit BH through the middle ×9; BH crosscourt rates higher · 0.38 pts
- Return of a 1st serve, body, deuce court hit FH down the line ×5; FH through the middle rates higher · 0.25 pts
- Rally, shots 5–8: drive to your backhand side hit BH through the middle + approach ×1; BH crosscourt + approach rates higher · 0.25 pts