Zadar CH · F · Clay · 27 Mar 2022
Daniel Michalski v Flavio Cobolli
54–67 in points · Flavio Cobolli won
Why it went the way it did
Flavio Cobolli won 7.1 more points than Daniel Michalski relative to what the serve alone predicted. Daniel Michalski's biggest leaks: slice shot selection −2.7, serve 1st execution −2.1, backhand shot selection −1.0.
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 Michalski | Flavio Cobolli | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | −0.2 | −0.1 | −2.1 | −2.4 | +0.1 | −0.1 | −1.2 | −1.3 |
| Serve 2nd | +0.1 | ±0.0 | −0.6 | −0.5 | +0.1 | ±0.0 | ±0.0 | +0.1 |
| Return | +0.2 | −0.3 | +4.6 | +4.5 | +0.1 | +0.7 | +3.2 | +4.0 |
| Forehand | +0.4 | +3.8 | −0.8 | +3.4 | +0.5 | +2.3 | +2.0 | +4.9 |
| Backhand | +0.1 | −1.0 | +1.5 | +0.5 | +0.4 | −0.9 | +3.2 | +2.7 |
| Slice | ±0.0 | −2.7 | −0.3 | −2.9 | −0.1 | −1.3 | −0.2 | −1.6 |
| Net | +0.2 | +0.1 | +0.5 | +0.8 | +0.1 | +0.1 | −1.5 | −1.3 |
| Touch | −0.2 | −0.9 | +0.5 | −0.6 | −0.1 | −0.1 | +2.7 | +2.6 |
| All shots | +0.7 | −1.1 | +3.2 | +2.8 | +1.1 | +0.6 | +8.2 | +9.9 |
Set by set
| Set | Daniel Michalski | Flavio Cobolli | Net, Daniel | |
|---|---|---|---|---|
| 1 | +2.9 | +6.0 | −3.1 | |
| 2 | −0.1 | +3.9 | −4.0 |
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 Michalski serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 53% 53% | 19% 86% | 28% 30% |
| 2 | 44% 25% | 15% 25% | 41% 45% |
Set to set −1.04 per 100 first serves in sets 2+
Within sets +0.10 per 100 first serves, every two to three service games
Flavio Cobolli serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 58% 44% | 6% 100% | 35% 82% |
| 2 | 56% 53% | 7% 50% | 37% 40% |
Set to set +1.73 per 100 first serves in sets 2+
Within sets −0.26 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 Michalski
5.6 points left on the table across 282 shots 1.98 per 100 shots
- Rally, shots 5–8: drive to your backhand side hit BH through the middle ×8; BH crosscourt rates higher · 0.31 pts
- Rally, shots 5–8: drive to your backhand side hit FH inside-out ×11; FH inside-in rates higher · 0.31 pts
- Return +1: drive to your backhand side hit BH lob down the line ×2; BH lob crosscourt rates higher · 0.21 pts
- Long rally, 9+: drive to your backhand side hit BH through the middle ×5; BH crosscourt rates higher · 0.21 pts
Flavio Cobolli
6.1 points left on the table across 302 shots 2.01 per 100 shots
- Return of a 1st serve, T, ad court hit FH crosscourt ×3; FH inside-in rates higher · 0.59 pts
- Rally, shots 5–8: drive to your forehand side hit FH through the middle ×6; FH crosscourt rates higher · 0.30 pts
- Return +1: drive to your forehand side hit FH through the middle ×5; FH crosscourt rates higher · 0.29 pts
- Rally, shots 5–8: drive to your backhand side hit BH through the middle ×6; BH crosscourt rates higher · 0.23 pts