RallyIQ

Cordoba · R16 · Clay · 24 Feb 2021

Federico Coria v Francisco Cerundolo

74–75 in points · Federico Coria won

Why it went the way it did

Francisco Cerundolo won 1.0 more points than Federico Coria relative to what the serve alone predicted. Federico Coria's biggest leaks: forehand execution −4.6, slice shot selection −1.9, serve 1st execution −1.5.

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.

ShotFederico CoriaFrancisco Cerundolo
DirSelExecTotalDirSelExecTotal
Serve 1st +0.1 −0.2 −1.5 −1.6 −0.1 −0.2 −2.4 −2.6
Serve 2nd −0.1 ±0.0 +1.2 +1.1 ±0.0 ±0.0 +0.1 +0.1
Return +0.4 +0.3 +1.1 +1.8 ±0.0 +0.6 ±0.0 +0.5
Forehand −0.2 +1.5 −4.6 −3.2 +0.4 +4.2 −1.8 +2.9
Backhand +0.1 −0.2 +1.4 +1.3 +0.4 −0.6 −1.3 −1.5
Slice +0.1 −1.9 −0.9 −2.7 +0.2 −1.0 −0.5 −1.3
Net +0.1 +0.1 +0.6 +0.7 +0.3 +0.3 −0.4 +0.2
Touch −0.1 −1.2 −0.4 −1.6 ±0.0 −0.1 −1.4 −1.6
All shots +0.3−1.5 −3.1−4.3 +1.3+3.2 −7.8−3.3

Set by set

SetFederico CoriaFrancisco CerundoloNet, Federico
1−5.4+3.7 −9.1
2+1.8−3.9 +5.7
3−0.7−3.1 +2.4

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.

Federico Coria serving

SetWideBodyT
1 41% 43% 18% 33% 41% 14%
2 45% 50% – 55% 67%
3 32% 58% 5% 50% 63% 71%

Set to set −1.22 per 100 first serves in sets 2+

Within sets −1.63 per 100 first serves, every two to three service games

Francisco Cerundolo serving

SetWideBodyT
1 33% 75% 25% 100% 42% 100%
2 54% 33% 7% 0% 39% 55%
3 59% 65% 17% 60% 24% 43%

Set to set −2.92 per 100 first serves in sets 2+

Within sets −1.56 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.

Federico Coria

6.8 points left on the table across 304 shots 2.25 per 100 shots

  1. Rally, shots 5–8: drive to your backhand side hit BH through the middle ×13; BH crosscourt rates higher · 0.50 pts
  2. Return +1: drive to your forehand side hit FH through the middle ×4; FH crosscourt rates higher · 0.23 pts
  3. Serve +1: deep return to your middle hit FH down the line ×7; FH crosscourt rates higher · 0.23 pts
  4. Serve +1: deep return to your middle hit FH through the middle ×3; FH crosscourt rates higher · 0.22 pts

Francisco Cerundolo

6.1 points left on the table across 325 shots 1.89 per 100 shots

  1. Return of a 1st serve, T, ad court hit FH through the middle ×6; FH inside-in rates higher · 0.98 pts
  2. Rally, shots 5–8: drive to your backhand side hit BH through the middle ×10; BH crosscourt rates higher · 0.39 pts
  3. Serve +1: deep return to your middle hit FH through the middle ×3; FH crosscourt rates higher · 0.22 pts
  4. Serve +1: mid-depth return to your backhand side hit BH through the middle ×4; BH down the line rates higher · 0.20 pts