RallyIQ

Madrid Masters · QF · Clay · 7 May 2021

Rafael Nadal v Alexander Zverev

56–65 in points · Alexander Zverev won

Why it went the way it did

Alexander Zverev won 5.8 more points than Rafael Nadal relative to what the serve alone predicted. Rafael Nadal's biggest leaks: forehand execution −2.1, serve 1st execution −1.8, return 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.

ShotRafael NadalAlexander Zverev
DirSelExecTotalDirSelExecTotal
Serve 1st ±0.0 −0.1 −1.8 −1.9 +0.2 ±0.0 −0.4 −0.3
Serve 2nd −0.1 ±0.0 −0.7 −0.8 ±0.0 ±0.0 −1.7 −1.7
Return −0.1 −0.5 −1.5 −2.0 ±0.0 +0.7 −2.8 −2.1
Forehand +0.2 +1.6 −2.1 −0.3 −0.1 +3.1 +1.3 +4.3
Backhand +0.1 ±0.0 ±0.0 ±0.0 ±0.0 −0.1 +1.3 +1.2
Slice ±0.0 −1.0 +0.9 −0.1 −0.1 −0.5 ±0.0 −0.5
Net ±0.0 ±0.0 −0.3 −0.2 −0.2 +0.4 −0.6 −0.4
Touch +0.2 −0.2 +0.5 +0.5 +0.1 ±0.0 +0.5 +0.6
All shots +0.5−0.3 −4.9−4.7 −0.2+3.7 −2.3+1.1

Set by set

SetRafael NadalAlexander ZverevNet, Rafael
1−1.6+0.3 −1.9
2−3.2+0.8 −4.0

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.

Rafael Nadal serving

SetWideBodyT
1 47% 36% 7% 50% 47% 79%
2 39% 64% 19% 43% 42% 60%

Set to set +1.91 per 100 first serves in sets 2+

Within sets +0.94 per 100 first serves, every two to three service games

Alexander Zverev serving

SetWideBodyT
1 44% 67% 4% 0% 52% 64%
2 36% 90% – 64% 61%

Set to set +0.48 per 100 first serves in sets 2+

Within sets +0.28 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.

Rafael Nadal

4.8 points left on the table across 217 shots 2.20 per 100 shots

  1. Serve +1: mid-depth return to your middle hit FH through the middle ×5; FH crosscourt rates higher · 0.43 pts
  2. Return of a 1st serve, wide, deuce court hit BH down the line ×2; BH crosscourt rates higher · 0.26 pts
  3. Return of a 1st serve, wide, ad court hit FH crosscourt ×3; FH inside-out rates higher · 0.26 pts
  4. Rally, shots 5–8: volley to your middle, opponent at net hit BH through the middle ×1; BH down the line rates higher · 0.25 pts

Alexander Zverev

6.7 points left on the table across 235 shots 2.84 per 100 shots

  1. Return of a 1st serve, T, ad court hit FH through the middle ×8; FH inside-in rates higher · 1.30 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. Return +1: drive to your backhand side hit BH through the middle ×7; BH crosscourt rates higher · 0.27 pts
  4. Long rally, 9+: drive to your middle hit FH through the middle + approach ×1; FH down the line + approach rates higher · 0.23 pts