RallyIQ

Roland Garros · R64 · Clay · 26 May 2016

Kristina Mladenovic v Timea Babos

67–48 in points · Kristina Mladenovic won

Why it went the way it did

Kristina Mladenovic won 9.2 more points than Timea Babos relative to what the serve alone predicted. Timea Babos's biggest leaks: forehand execution −5.6, slice shot selection −3.6, return execution −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.

ShotKristina MladenovicTimea Babos
DirSelExecTotalDirSelExecTotal
Serve 1st −0.2 +0.1 +0.2 +0.1 +0.3 ±0.0 −0.8 −0.5
Serve 2nd +0.1 ±0.0 −0.2 −0.2 ±0.0 ±0.0 +1.2 +1.2
Return −0.2 +0.3 +0.4 +0.5 +0.2 −0.2 −2.1 −2.1
Forehand +0.8 +2.1 +0.5 +3.4 +0.1 +1.2 −5.6 −4.2
Backhand −0.2 +0.7 +0.7 +1.3 +0.6 +0.3 −1.5 −0.6
Slice ±0.0 −3.2 +0.6 −2.5 +0.1 −3.6 +2.6 −0.8
Net +0.2 +0.5 −0.3 +0.5 −0.1 +0.2 +0.7 +0.8
Touch −0.1 +0.7 −0.6 −0.1 ±0.0 −0.2 −0.2 −0.4
Other ±0.0 −0.1 −0.3 −0.4 ±0.0 ±0.0 ±0.0 ±0.0
All shots +0.3+1.2 +1.0+2.5 +1.3−2.3 −5.7−6.7

Set by set

SetKristina MladenovicTimea BabosNet, Kristina
1+0.6−3.3 +3.9
2+1.9−3.4 +5.3

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.

Kristina Mladenovic serving

SetWideBodyT
1 32% 50% 22% 88% 46% 47%
2 42% 70% 38% 78% 21% 80%

Set to set +3.70 per 100 first serves in sets 2+

Within sets +0.19 per 100 first serves, every two to three service games

Timea Babos serving

SetWideBodyT
1 39% 45% 7% 50% 54% 40%
2 38% 50% 5% 100% 57% 50%

Within sets −0.05 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.

Kristina Mladenovic

5.1 points left on the table across 208 shots 2.46 per 100 shots

  1. Return +1: drive to your backhand side hit BH through the middle ×5; BH crosscourt rates higher · 0.24 pts
  2. Rally, shots 5–8: drive to your backhand side hit BH through the middle ×5; BH crosscourt rates higher · 0.21 pts
  3. Rally, shots 5–8: slice to your backhand side, opponent at net hit BH through the middle ×1; BH crosscourt rates higher · 0.20 pts
  4. Rally, shots 5–8: drive to your middle hit BH through the middle ×4; BH crosscourt rates higher · 0.19 pts

Timea Babos

4.4 points left on the table across 212 shots 2.05 per 100 shots

  1. Return +1: drive to your backhand side hit BH through the middle ×6; BH crosscourt rates higher · 0.29 pts
  2. Rally, shots 5–8: drive to your middle, you at net hit Smash through the middle ×1; Smash crosscourt rates higher · 0.20 pts
  3. Return +1: drive to your forehand side hit FH through the middle ×3; FH crosscourt rates higher · 0.19 pts
  4. Rally, shots 5–8: drive to your forehand side, you at net hit FH volley down the line ×1; FH volley crosscourt rates higher · 0.14 pts