Olympics · R64 · Hard · 6 Aug 2016
Damir Dzumhur v Dudi Sela
61–73 in points · Dudi Sela won
Why it went the way it did
Dudi Sela won 4.9 more points than Damir Dzumhur relative to what the serve alone predicted. Damir Dzumhur's biggest leaks: slice shot selection −3.7, net execution −2.7, serve 2nd execution −2.2.
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 | Damir Dzumhur | Dudi Sela | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | ±0.0 | −0.1 | −1.6 | −1.7 | +0.2 | +0.1 | −2.6 | −2.3 |
| Serve 2nd | ±0.0 | ±0.0 | −2.2 | −2.2 | +0.1 | ±0.0 | +0.9 | +0.9 |
| Return | +0.2 | +0.3 | +1.8 | +2.3 | ±0.0 | −0.2 | +1.4 | +1.2 |
| Forehand | +0.4 | +3.1 | −1.4 | +2.1 | +0.8 | +2.0 | −0.3 | +2.5 |
| Backhand | +0.3 | +0.9 | −0.1 | +1.2 | +0.7 | +1.1 | +1.6 | +3.3 |
| Slice | +0.7 | −3.7 | +2.6 | −0.3 | +0.1 | −0.8 | +1.0 | +0.4 |
| Net | +0.1 | +0.1 | −2.7 | −2.5 | +0.2 | +0.3 | −1.8 | −1.4 |
| Touch | ±0.0 | −0.1 | +0.1 | −0.1 | +0.1 | −0.5 | −0.6 | −1.0 |
| All shots | +1.7 | +0.4 | −3.4 | −1.2 | +2.2 | +1.9 | −0.4 | +3.6 |
Set by set
| Set | Damir Dzumhur | Dudi Sela | Net, Damir | |
|---|---|---|---|---|
| 1 | +1.2 | +3.7 | −2.5 | |
| 2 | −2.5 | −0.1 | −2.4 |
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.
Damir Dzumhur serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 54% 57% | 8% 0% | 38% 60% |
| 2 | 49% 50% | 8% 67% | 43% 38% |
Within sets −0.51 per 100 first serves, every two to three service games
Dudi Sela serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 64% 62% | 6% 50% | 30% 70% |
| 2 | 74% 54% | 5% 100% | 21% 38% |
Set to set −0.66 per 100 first serves in sets 2+
Within sets +0.07 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.
Damir Dzumhur
5.9 points left on the table across 282 shots 2.08 per 100 shots
- Return of a 2nd serve, T, ad court hit FH through the middle ×3; FH inside-out rates higher · 0.28 pts
- Rally, shots 5–8: drive to your backhand side, you at net hit BH volley through the middle ×1; BH volley crosscourt rates higher · 0.26 pts
- Long rally, 9+: drive to your forehand side, you at net hit FH volley down the line ×2; FH volley crosscourt rates higher · 0.25 pts
- Long rally, 9+: drop shot to your backhand side hit BH slice through the middle ×1; BH slice down the line rates higher · 0.21 pts
Dudi Sela
5.1 points left on the table across 272 shots 1.88 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
- Rally, shots 5–8: drive to your backhand side hit BH volley through the middle ×1; BH volley crosscourt rates higher · 0.23 pts
- Return of a 1st serve, wide, deuce court hit FH down the line ×3; FH crosscourt rates higher · 0.21 pts
- Rally, shots 5–8: drive to your backhand side hit BH through the middle ×5; BH crosscourt rates higher · 0.19 pts