RallyIQ

Brisbane · R32 · Hard · 30 Dec 2024

Grigor Dimitrov v Yannick Hanfmann

84–74 in points · result not charted to completion

Why it went the way it did

Grigor Dimitrov won 9.7 more points than Yannick Hanfmann relative to what the serve alone predicted. Yannick Hanfmann's biggest leaks: backhand execution −4.9, slice shot selection −2.3, slice execution −1.6.

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 DimitrovYannick Hanfmann
DirSelExecTotalDirSelExecTotal
Serve 1st +0.3 −0.1 +3.7 +3.8 +0.4 +0.2 +2.4 +3.0
Serve 2nd ±0.0 ±0.0 −0.1 −0.2 ±0.0 ±0.0 +0.2 +0.1
Return +0.5 −3.1 +5.2 +2.5 +0.1 +0.3 +2.8 +3.2
Forehand +0.2 +2.3 +4.4 +6.9 +0.3 +0.9 −0.5 +0.8
Backhand ±0.0 +0.4 −1.0 −0.6 +0.1 −0.7 −4.9 −5.4
Slice +0.4 −4.7 −1.5 −5.9 −0.1 −2.3 −1.6 −4.0
Net −0.6 −0.1 +1.5 +0.8 +0.1 −0.1 +1.8 +1.8
Touch ±0.0 +0.1 +0.3 +0.5 +0.1 ±0.0 −1.4 −1.3
All shots +0.7−5.3 +12.5+7.9 +1.0−1.7 −1.1−1.8

Set by set

SetGrigor DimitrovYannick HanfmannNet, Grigor
1+3.8+0.1 +3.8
2+4.1−1.9 +6.0

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.

Grigor Dimitrov serving

SetWideBodyT
1 50% 83% – 50% 56%
2 52% 79% – 48% 54%

Set to set +0.23 per 100 first serves in sets 2+

Within sets +0.29 per 100 first serves, every two to three service games

Yannick Hanfmann serving

SetWideBodyT
1 46% 73% – 54% 50%
2 45% 52% 2% 100% 53% 52%

Set to set +1.04 per 100 first serves in sets 2+

Within sets +0.69 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

6.8 points left on the table across 239 shots 2.84 per 100 shots

  1. Return of a 1st serve, wide, ad court hit BH slice through the middle ×8; BH slice crosscourt rates higher · 0.60 pts
  2. Return +1: drive to your forehand side, you at net hit FH volley through the middle ×1; FH volley crosscourt rates higher · 0.36 pts
  3. Rally, shots 5–8: slice to your forehand side, you at net hit FH volley through the middle ×1; FH volley crosscourt rates higher · 0.29 pts
  4. Rally, shots 5–8: drive to your forehand side, you at net hit FH volley through the middle ×1; FH volley crosscourt rates higher · 0.28 pts

Yannick Hanfmann

4.8 points left on the table across 226 shots 2.11 per 100 shots

  1. Serve +1: short return to your middle, you at net hit BH volley through the middle ×1; BH volley crosscourt rates higher · 0.20 pts
  2. Return of a 1st serve, wide, ad court hit BH slice down the line ×1; BH slice crosscourt rates higher · 0.17 pts
  3. Rally, shots 5–8: drive to your middle hit FH through the middle ×3; FH crosscourt rates higher · 0.17 pts
  4. Rally, shots 5–8: drive to your forehand side, you at net hit FH volley down the line ×1; FH volley crosscourt rates higher · 0.14 pts