RallyIQ

Paris Masters · R64 · Hard · 31 Oct 2022

Maxime Cressy v Diego Schwartzman

60–45 in points · Maxime Cressy won

Why it went the way it did

Maxime Cressy won 8.5 more points than Diego Schwartzman relative to what the serve alone predicted. Diego Schwartzman's biggest leaks: slice shot selection −3.1, serve 2nd execution −2.3, forehand direction choices −2.1.

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.

ShotMaxime CressyDiego Schwartzman
DirSelExecTotalDirSelExecTotal
Serve 1st +0.4 +2.1 +1.2 +3.7 −0.4 −0.1 −0.7 −1.2
Serve 2nd +0.2 +1.2 +2.2 +3.6 ±0.0 ±0.0 −2.3 −2.4
Return +0.1 +0.4 +3.3 +3.9 −0.4 ±0.0 +1.3 +0.9
Forehand −0.8 +1.1 +0.5 +0.9 −2.1 +1.2 +3.7 +2.8
Backhand −0.1 ±0.0 −2.5 −2.6 −0.3 −0.2 +0.3 −0.2
Slice −0.4 −2.7 −1.2 −4.2 −0.1 −3.1 ±0.0 −3.2
Net −0.2 −0.1 +0.1 −0.2 −0.3 −0.1 +0.8 +0.4
Touch ±0.0 −0.1 ±0.0 −0.1 ±0.0 −0.2 −0.5 −0.7
All shots −0.8+2.1 +3.8+5.1 −3.7−2.4 +2.5−3.5

Set by set

SetMaxime CressyDiego SchwartzmanNet, Maxime
1+3.5+0.1 +3.4
2+1.6−3.6 +5.1

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.

Maxime Cressy serving

SetWideBodyT
1 75% 76% 4% 0% 21% 83%
2 67% 64% 5% 100% 29% 67%

Set to set +0.81 per 100 first serves in sets 2+

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

Diego Schwartzman serving

SetWideBodyT
1 42% 60% 21% 60% 38% 67%
2 38% 75% 25% 50% 38% 25%

Within sets −1.59 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.

Maxime Cressy

6.3 points left on the table across 199 shots 3.15 per 100 shots

  1. Return +1: drive to your middle hit FH through the middle ×7; FH crosscourt rates higher · 0.41 pts
  2. Return +1: drive to your backhand side hit BH slice through the middle ×4; BH slice crosscourt rates higher · 0.33 pts
  3. 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
  4. Long rally, 9+: drive to your middle hit FH through the middle ×5; FH crosscourt rates higher · 0.27 pts

Diego Schwartzman

9.0 points left on the table across 184 shots 4.91 per 100 shots

  1. Serve +1: drive to your middle hit FH through the middle ×11; FH crosscourt rates higher · 1.37 pts
  2. Serve +1: drive to your forehand side hit FH through the middle ×5; FH crosscourt rates higher · 0.72 pts
  3. Rally, shots 5–8: drive to your forehand side hit FH through the middle ×9; FH crosscourt rates higher · 0.46 pts
  4. Long rally, 9+: drive to your middle hit FH through the middle ×7; FH crosscourt rates higher · 0.37 pts