RallyIQ

Wimbledon · R128 · Grass · 29 Jun 2021

Ashleigh Barty v Carla Suarez Navarro

93–66 in points · Ashleigh Barty won

Why it went the way it did

Ashleigh Barty won 12.7 more points than Carla Suarez Navarro relative to what the serve alone predicted. Carla Suarez Navarro's biggest leaks: slice shot selection −5.8, return shot selection −3.0, forehand execution −1.3.

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.

ShotAshleigh BartyCarla Suarez Navarro
DirSelExecTotalDirSelExecTotal
Serve 1st +0.5 ±0.0 +3.9 +4.3 +0.1 ±0.0 −1.0 −1.0
Serve 2nd ±0.0 ±0.0 +0.2 +0.2 ±0.0 ±0.0 +1.7 +1.6
Return +0.7 −1.7 +3.6 +2.7 −0.3 −3.0 −0.2 −3.4
Forehand −0.8 +2.4 +1.5 +3.1 −0.6 +1.3 −1.3 −0.7
Backhand ±0.0 +0.2 +0.8 +1.0 −0.6 −0.2 −0.3 −1.1
Slice +0.3 −7.6 −1.1 −8.4 +0.1 −5.8 +0.3 −5.5
Net ±0.0 +0.4 −0.6 −0.2 ±0.0 −0.3 ±0.0 −0.3
Touch −0.1 −0.1 −0.8 −0.9 +0.2 ±0.0 −0.7 −0.6
All shots +0.6−6.3 +7.4+1.8 −1.2−8.2 −1.6−11.0

Set by set

SetAshleigh BartyCarla Suarez NavarroNet, Ashleigh
1+3.2−4.4 +7.6
2−7.8−3.1 −4.7
3+6.4−3.4 +9.8

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.

Ashleigh Barty serving

SetWideBodyT
1 43% 67% 5% 100% 52% 91%
2 39% 56% 13% 50% 48% 64%
3 59% 90% 6% 100% 35% 100%

Set to set −0.34 per 100 first serves in sets 2+

Within sets −0.61 per 100 first serves, every two to three service games

Carla Suarez Navarro serving

SetWideBodyT
1 23% 20% 27% 67% 50% 45%
2 42% 81% 13% 40% 45% 71%
3 33% 40% 13% 0% 53% 38%

Set to set +0.19 per 100 first serves in sets 2+

Within sets −0.12 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.

Ashleigh Barty

9.0 points left on the table across 317 shots 2.83 per 100 shots

  1. Rally, shots 5–8: drive to your backhand side hit BH slice through the middle ×12; BH slice crosscourt rates higher · 0.72 pts
  2. Return +1: drive to your backhand side hit BH slice through the middle ×7; BH slice crosscourt rates higher · 0.45 pts
  3. Return of a 2nd serve, wide, ad court hit BH slice crosscourt ×5; BH slice through the middle rates higher · 0.35 pts
  4. Return +1: drive to your middle hit FH through the middle ×5; FH down the line rates higher · 0.32 pts

Carla Suarez Navarro

10.1 points left on the table across 308 shots 3.28 per 100 shots

  1. Rally, shots 5–8: slice to your backhand side hit BH through the middle ×5; BH down the line rates higher · 0.54 pts
  2. Rally, shots 5–8: drive to your forehand side hit FH through the middle ×7; FH crosscourt rates higher · 0.38 pts
  3. Rally, shots 5–8: drive to your middle hit FH through the middle ×4; FH crosscourt rates higher · 0.28 pts
  4. Return of a 1st serve, wide, deuce court hit FH slice down the line ×2; FH slice crosscourt rates higher · 0.27 pts