Antwerp · R16 · Hard · 17 Oct 2024
Daniel Altmaier v Jiri Lehecka
53–58 in points · result not charted to completion
Why it went the way it did
Jiri Lehecka won 2.0 more points than Daniel Altmaier relative to what the serve alone predicted. Daniel Altmaier's biggest leaks: slice shot selection −3.1, return shot selection −1.5, backhand execution −0.9.
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 | Daniel Altmaier | Jiri Lehecka | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | +0.3 | +0.8 | +2.8 | +3.8 | +0.3 | +0.2 | +1.5 | +1.9 |
| Serve 2nd | ±0.0 | ±0.0 | +1.3 | +1.2 | ±0.0 | ±0.0 | −0.3 | −0.2 |
| Return | −0.5 | −1.5 | +2.4 | +0.4 | +0.2 | −0.5 | +2.4 | +2.0 |
| Forehand | ±0.0 | +0.3 | +0.2 | +0.5 | +0.1 | +1.0 | +0.4 | +1.6 |
| Backhand | −0.1 | +0.9 | −0.9 | −0.1 | +0.2 | +0.4 | +0.7 | +1.2 |
| Slice | −0.2 | −3.1 | −0.2 | −3.6 | +0.1 | −1.3 | +0.6 | −0.6 |
| Net | −0.1 | +0.7 | +1.5 | +2.1 | +0.3 | +0.3 | ±0.0 | +0.6 |
| Touch | ±0.0 | ±0.0 | ±0.0 | ±0.0 | +0.1 | −0.1 | ±0.0 | ±0.0 |
| All shots | −0.6 | −2.1 | +7.1 | +4.4 | +1.2 | ±0.0 | +5.3 | +6.5 |
Set by set
| Set | Daniel Altmaier | Jiri Lehecka | Net, Daniel | |
|---|---|---|---|---|
| 1 | +3.5 | +3.3 | +0.3 | |
| 2 | +0.9 | +3.2 | −2.3 |
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.
Daniel Altmaier serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 48% 77% | 4% 100% | 48% 62% |
| 2 | 52% 71% | – | 48% 54% |
Within sets −1.74 per 100 first serves, every two to three service games
Jiri Lehecka serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 44% 79% | – | 56% 61% |
| 2 | 36% 78% | 4% 100% | 60% 67% |
Set to set −0.66 per 100 first serves in sets 2+
Within sets −0.41 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.
Daniel Altmaier
4.9 points left on the table across 130 shots 3.80 per 100 shots
- Serve +1: short return to your middle, you at net hit FH volley through the middle ×1; FH volley crosscourt rates higher · 0.25 pts
- Rally, shots 5–8: drive to your backhand side, you at net hit BH volley down the line ×2; BH volley crosscourt rates higher · 0.24 pts
- Return of a 1st serve, T, deuce court hit BH slice down the line ×2; BH slice crosscourt rates higher · 0.23 pts
- Return of a 2nd serve, body, ad court, server rushing the net hit FH through the middle ×1; FH down the line rates higher · 0.18 pts
Jiri Lehecka
2.8 points left on the table across 124 shots 2.28 per 100 shots
- 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
- Return +1: drive to your backhand side, opponent at net hit BH through the middle ×2; BH crosscourt rates higher · 0.14 pts
- Rally, shots 5–8: drive to your backhand side, you at net hit BH volley down the line ×1; BH volley crosscourt rates higher · 0.12 pts
- Rally, shots 5–8: drive to your middle hit FH through the middle ×2; FH crosscourt rates higher · 0.11 pts