RallyIQ

Wimbledon · SF · Grass · 10 Jul 2025

Iga Swiatek v Belinda Bencic

55–32 in points · Iga Swiatek won

Why it went the way it did

Iga Swiatek won 10.8 more points than Belinda Bencic relative to what the serve alone predicted. Belinda Bencic's biggest leaks: backhand execution −3.0, slice shot selection −0.9, serve 1st execution −0.5.

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.

ShotIga SwiatekBelinda Bencic
DirSelExecTotalDirSelExecTotal
Serve 1st −0.4 ±0.0 +0.4 ±0.0 −0.3 ±0.0 −0.5 −0.8
Serve 2nd ±0.0 ±0.0 −0.2 −0.2 ±0.0 ±0.0 +0.5 +0.5
Return +0.2 +0.5 +5.2 +5.9 +0.1 −0.5 +0.3 −0.1
Forehand ±0.0 +0.5 +0.3 +0.8 −0.1 +0.8 +1.0 +1.7
Backhand +0.1 −0.1 +2.4 +2.4 ±0.0 +0.2 −3.0 −2.9
Slice ±0.0 −0.7 +1.4 +0.6 −0.2 −0.9 −0.2 −1.3
Net +0.1 +0.1 +0.5 +0.7 +0.1 +0.6 +0.9 +1.6
Touch −0.1 −1.2 +0.3 −1.0 +0.1 −0.1 −0.3 −0.3
All shots −0.3−0.9 +10.3+9.2 −0.3+0.1 −1.4−1.6

Set by set

SetIga SwiatekBelinda BencicNet, Iga
1+4.6−0.2 +4.8
2+4.5−1.5 +6.0

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.

Iga Swiatek serving

SetWideBodyT
1 29% 100% 29% 83% 43% 56%
2 22% 80% 48% 64% 30% 57%

Within sets +0.38 per 100 first serves, every two to three service games

Belinda Bencic serving

SetWideBodyT
1 21% 25% 37% 43% 42% 75%
2 30% 43% 26% 50% 43% 30%

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.

Iga Swiatek

3.2 points left on the table across 129 shots 2.47 per 100 shots

  1. Serve +1: mid-depth return to your middle hit FH through the middle ×3; FH crosscourt rates higher · 0.25 pts
  2. Rally, shots 5–8: volley to your forehand side, opponent at net hit FH through the middle ×1; FH down the line rates higher · 0.21 pts
  3. Rally, shots 5–8: drive to your middle hit FH through the middle ×2; FH crosscourt rates higher · 0.14 pts
  4. Return +1: drive to your middle hit FH through the middle ×2; FH down the line rates higher · 0.13 pts

Belinda Bencic

3.2 points left on the table across 122 shots 2.66 per 100 shots

  1. Serve +1: mid-depth return to your middle hit FH through the middle ×3; FH crosscourt rates higher · 0.25 pts
  2. Serve +1: mid-depth return to your middle hit BH through the middle ×3; BH crosscourt rates higher · 0.18 pts
  3. Return +1: volley to your backhand side, opponent at net hit BH through the middle ×1; BH crosscourt rates higher · 0.18 pts
  4. Long rally, 9+: lob to your backhand side, you at net hit Smash through the middle ×1; Smash inside-in rates higher · 0.17 pts