RallyIQ

Paris Masters · R16 · Hard · 29 Oct 2014

Grigor Dimitrov v Andy Murray

39–58 in points · Andy Murray won

Why it went the way it did

Andy Murray won 10.8 more points than Grigor Dimitrov relative to what the serve alone predicted. Grigor Dimitrov's biggest leaks: backhand execution −2.1, forehand execution −2.0, slice shot selection −2.0.

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.

ShotGrigor DimitrovAndy Murray
DirSelExecTotalDirSelExecTotal
Serve 1st +0.2 −0.1 −1.8 −1.7 +0.2 ±0.0 +0.9 +1.1
Serve 2nd ±0.0 ±0.0 −0.2 −0.2 ±0.0 ±0.0 −0.3 −0.4
Return +0.2 −0.1 +1.1 +1.2 +0.3 −0.4 +1.5 +1.4
Forehand +0.2 +3.5 −2.0 +1.6 ±0.0 +0.8 +2.2 +3.0
Backhand +0.1 +0.2 −2.1 −1.7 +0.2 +0.5 +2.6 +3.3
Slice +0.3 −2.0 ±0.0 −1.7 +0.2 −1.3 +0.5 −0.5
Net +0.2 +0.6 −0.3 +0.6 +0.2 +0.1 −0.8 −0.5
Touch ±0.0 +0.2 −1.6 −1.4 +0.1 −0.8 +0.4 −0.3
Other ±0.0 −0.1 −0.2 −0.3 ±0.0 ±0.0 ±0.0 ±0.0
All shots +1.2+2.3 −7.1−3.7 +1.3−1.2 +7.0+7.1

Set by set

SetGrigor DimitrovAndy MurrayNet, Grigor
1−0.9+3.3 −4.1
2−2.8+3.9 −6.6

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.

Grigor Dimitrov serving

SetWideBodyT
1 54% 53% – 46% 69%
2 48% 50% 8% 50% 44% 64%

Set to set +0.80 per 100 first serves in sets 2+

Within sets +1.30 per 100 first serves, every two to three service games

Andy Murray serving

SetWideBodyT
1 35% 71% – 65% 85%
2 50% 92% – 50% 75%

Within sets −0.80 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.

Grigor Dimitrov

3.8 points left on the table across 204 shots 1.84 per 100 shots

  1. Rally, shots 5–8: drive to your backhand side, you at net hit BH volley down the line ×2; BH volley crosscourt rates higher · 0.24 pts
  2. Long rally, 9+: volley to your forehand side, opponent at net hit FH through the middle ×1; FH crosscourt rates higher · 0.21 pts
  3. Rally, shots 5–8: drive to your forehand side hit FH through the middle ×3; FH crosscourt rates higher · 0.15 pts
  4. Rally, shots 5–8: drive to your backhand side hit BH slice through the middle ×2; BH slice crosscourt rates higher · 0.15 pts

Andy Murray

3.4 points left on the table across 206 shots 1.64 per 100 shots

  1. Rally, shots 5–8: drive to your forehand side hit FH through the middle ×5; FH crosscourt rates higher · 0.25 pts
  2. Rally, shots 5–8: drive to your backhand side hit BH through the middle ×6; BH crosscourt rates higher · 0.23 pts
  3. Return of a 1st serve, T, deuce court hit BH slice through the middle ×5; BH slice crosscourt rates higher · 0.13 pts
  4. Return +1: drive to your backhand side hit BH through the middle ×3; BH crosscourt rates higher · 0.12 pts