RallyIQ

Madrid Masters · R16 · Clay · 8 May 2014

Jarkko Nieminen v Rafael Nadal

43–60 in points · Rafael Nadal won

Why it went the way it did

Rafael Nadal won 8.6 more points than Jarkko Nieminen relative to what the serve alone predicted. Jarkko Nieminen's biggest leaks: slice execution −1.7, backhand shot selection −1.4, slice shot selection −1.4.

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.

ShotJarkko NieminenRafael Nadal
DirSelExecTotalDirSelExecTotal
Serve 1st −0.5 ±0.0 +1.1 +0.6 −0.5 −0.1 +0.5 −0.1
Serve 2nd ±0.0 ±0.0 +0.4 +0.3 ±0.0 ±0.0 +0.5 +0.4
Return −0.2 +0.8 −0.1 +0.5 −0.1 +1.5 +1.8 +3.2
Forehand −0.2 +2.1 −0.2 +1.8 +0.3 +3.9 +1.7 +5.9
Backhand −0.3 −1.4 +1.5 −0.3 ±0.0 −0.4 −0.7 −1.1
Slice ±0.0 −1.4 −1.7 −3.1 ±0.0 −0.8 +0.2 −0.6
Net ±0.0 +0.1 −0.6 −0.5 ±0.0 +0.2 +0.2 +0.4
Touch ±0.0 −0.4 +0.2 −0.3 ±0.0 −0.5 −0.1 −0.7
All shots −1.2−0.3 +0.5−1.1 −0.3+3.8 +4.0+7.6

Set by set

SetJarkko NieminenRafael NadalNet, Jarkko
1−1.3+6.9 −8.2
2+0.3+0.7 −0.4

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.

Jarkko Nieminen serving

SetWideBodyT
1 41% 27% 33% 56% 26% 43%
2 40% 60% 40% 70% 20% 20%

Within sets +0.57 per 100 first serves, every two to three service games

Rafael Nadal serving

SetWideBodyT
1 41% 86% 24% 100% 35% 50%
2 44% 60% 44% 67% 12% 25%

Within sets +3.30 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.

Jarkko Nieminen

5.8 points left on the table across 180 shots 3.20 per 100 shots

  1. Serve +1: deep return to your unknown spot hit FH through the middle ×3; FH down the line rates higher · 0.45 pts
  2. Serve +1: mid-depth return to your unknown spot hit BH through the middle ×4; BH crosscourt rates higher · 0.40 pts
  3. Rally, shots 5–8: 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 forehand side hit FH through the middle ×6; FH crosscourt rates higher · 0.30 pts

Rafael Nadal

5.1 points left on the table across 179 shots 2.86 per 100 shots

  1. Serve +1: deep return to your unknown spot hit FH through the middle ×3; FH down the line rates higher · 0.45 pts
  2. Serve +1: short return to your unknown spot hit FH through the middle ×3; FH crosscourt rates higher · 0.43 pts
  3. Rally, shots 5–8: drive to your middle hit FH through the middle ×6; FH crosscourt rates higher · 0.34 pts
  4. Return +1: drive to your middle hit FH through the middle ×5; FH crosscourt rates higher · 0.30 pts