RallyIQ

Kitzbuhel · F · Clay · 25 Jul 2004

Nicolas Massu v Gaston Gaudio

92–74 in points · Nicolas Massu won

Why it went the way it did

Nicolas Massu won 8.6 more points than Gaston Gaudio relative to what the serve alone predicted. Gaston Gaudio's biggest leaks: backhand execution −5.8, forehand execution −3.3, slice shot selection −2.3.

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.

ShotNicolas MassuGaston Gaudio
DirSelExecTotalDirSelExecTotal
Serve 1st −0.1 −0.2 −1.2 −1.5 −0.2 −0.1 −0.8 −1.1
Serve 2nd +0.1 −0.1 −0.2 −0.1 +0.1 −0.1 +0.8 +0.8
Return −0.2 +0.2 +0.7 +0.8 −0.1 −0.4 +1.9 +1.4
Forehand −0.8 +3.8 +3.5 +6.5 −0.6 +3.2 −3.3 −0.7
Backhand −0.9 +0.7 −3.2 −3.4 −0.2 −1.1 −5.8 −7.2
Slice −0.2 −2.7 +0.8 −2.1 ±0.0 −2.3 +0.1 −2.2
Net +0.2 +1.1 −0.9 +0.4 +0.4 ±0.0 +0.1 +0.5
Touch −0.1 −0.7 ±0.0 −0.8 ±0.0 −0.4 +0.1 −0.4
All shots −1.7+2.1 −0.6−0.2 −0.6−1.2 −7.0−8.8

Set by set

SetNicolas MassuGaston GaudioNet, Nicolas
1−3.1−5.3 +2.1
2+2.9−3.5 +6.4

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.

Nicolas Massu serving

SetWideBodyT
1 46% 56% 20% 55% 33% 61%
2 61% 74% – 39% 83%

Set to set −0.82 per 100 first serves in sets 2+

Within sets −0.21 per 100 first serves, every two to three service games

Gaston Gaudio serving

SetWideBodyT
1 37% 60% 20% 38% 44% 50%
2 40% 69% 15% 33% 45% 56%

Set to set −1.21 per 100 first serves in sets 2+

Within sets +0.36 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.

Nicolas Massu

12.7 points left on the table across 423 shots 2.99 per 100 shots

  1. Rally, shots 5–8: drive to your backhand side hit BH through the middle ×18; BH crosscourt rates higher · 0.70 pts
  2. Long rally, 9+: drive to your backhand side hit BH through the middle ×15; BH crosscourt rates higher · 0.63 pts
  3. Return +1: drive to your backhand side hit BH through the middle ×10; BH crosscourt rates higher · 0.39 pts
  4. Rally, shots 5–8: drive to your backhand side hit FH through the middle ×4; FH inside-in rates higher · 0.38 pts

Gaston Gaudio

10.8 points left on the table across 423 shots 2.55 per 100 shots

  1. Return of a 1st serve, T, ad court hit FH through the middle ×3; FH inside-in rates higher · 0.49 pts
  2. Rally, shots 5–8: drive to your forehand side hit FH through the middle ×9; FH crosscourt rates higher · 0.46 pts
  3. Long rally, 9+: drive to your forehand side hit FH through the middle ×7; FH crosscourt rates higher · 0.38 pts
  4. Long rally, 9+: drive to your backhand side hit BH through the middle ×8; BH crosscourt rates higher · 0.33 pts