Charleston · R32 · Clay · 1 Apr 2026
Bianca Andreescu v Sofia Kenin
60–67 in points · Sofia Kenin won
Why it went the way it did
Sofia Kenin won 3.6 more points than Bianca Andreescu relative to what the serve alone predicted. Bianca Andreescu's biggest leaks: slice shot selection −5.1, forehand execution −3.3, touch shot selection −1.2.
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 | Bianca Andreescu | Sofia Kenin | ||||||
|---|---|---|---|---|---|---|---|---|
| Dir | Sel | Exec | Total | Dir | Sel | Exec | Total | |
| Serve 1st | −0.2 | +0.1 | ±0.0 | ±0.0 | +0.3 | ±0.0 | +0.4 | +0.7 |
| Serve 2nd | ±0.0 | ±0.0 | +0.3 | +0.3 | −0.1 | ±0.0 | +1.4 | +1.3 |
| Return | −0.1 | −0.8 | +1.2 | +0.3 | +0.2 | ±0.0 | −2.8 | −2.6 |
| Forehand | −0.4 | +1.3 | −3.3 | −2.4 | +0.4 | +0.8 | −0.8 | +0.5 |
| Backhand | −0.2 | +0.5 | +2.7 | +3.1 | +0.7 | −1.5 | +3.4 | +2.6 |
| Slice | −0.4 | −5.1 | +0.7 | −4.7 | +0.1 | −1.8 | +0.3 | −1.4 |
| Net | +0.4 | +0.4 | −0.5 | +0.3 | ±0.0 | ±0.0 | −0.8 | −0.8 |
| Touch | −0.1 | −1.2 | +2.1 | +0.8 | −0.1 | −0.2 | +1.1 | +0.9 |
| All shots | −0.8 | −4.8 | +3.2 | −2.4 | +1.7 | −2.7 | +2.1 | +1.1 |
Set by set
| Set | Bianca Andreescu | Sofia Kenin | Net, Bianca | |
|---|---|---|---|---|
| 1 | −0.7 | +0.3 | −1.0 | |
| 2 | −1.7 | +0.9 | −2.6 |
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.
Bianca Andreescu serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 54% 71% | 38% 60% | 8% 100% |
| 2 | 55% 62% | 21% 25% | 24% 56% |
Within sets +0.99 per 100 first serves, every two to three service games
Sofia Kenin serving
| Set | Wide | Body | T |
|---|---|---|---|
| 1 | 51% 78% | 14% 100% | 34% 42% |
| 2 | 54% 67% | 4% 0% | 43% 58% |
Set to set −1.43 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.
Bianca Andreescu
7.6 points left on the table across 253 shots 2.99 per 100 shots
- Rally, shots 5–8: drive to your backhand side hit BH slice through the middle ×10; BH slice crosscourt rates higher · 0.60 pts
- Rally, shots 5–8: drive to your backhand side hit BH through the middle ×9; BH crosscourt rates higher · 0.39 pts
- Rally, shots 5–8: drive to your middle hit FH through the middle ×4; FH crosscourt rates higher · 0.28 pts
- Rally, shots 5–8: drive to your forehand side hit FH slice through the middle ×10; FH slice crosscourt rates higher · 0.27 pts
Sofia Kenin
5.4 points left on the table across 252 shots 2.16 per 100 shots
- Long rally, 9+: drive to your forehand side, opponent at net, you at net hit FH volley through the middle ×1; FH volley crosscourt rates higher · 0.31 pts
- Serve +1: mid-depth return to your middle hit FH through the middle ×3; FH crosscourt rates higher · 0.25 pts
- Rally, shots 5–8: drive to your middle hit FH through the middle ×3; FH crosscourt rates higher · 0.21 pts
- Rally, shots 5–8: lob to your middle hit BH crosscourt ×1; BH down the line rates higher · 0.20 pts