RallyIQ

Miami Masters · R128 · Hard · 19 Mar 2026

Hubert Hurkacz v Ethan Quinn

40–56 in points · Ethan Quinn won

Why it went the way it did

Ethan Quinn won 8.3 more points than Hubert Hurkacz relative to what the serve alone predicted. Hubert Hurkacz's biggest leaks: forehand execution −3.5, backhand execution −2.3, return execution −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.

ShotHubert HurkaczEthan Quinn
DirSelExecTotalDirSelExecTotal
Serve 1st +0.2 −0.1 −0.6 −0.5 +0.2 +0.2 −1.2 −0.8
Serve 2nd −0.1 ±0.0 +0.8 +0.7 ±0.0 +0.1 −0.9 −0.7
Return −0.2 +0.5 −2.0 −1.7 −0.4 −1.5 −0.3 −2.1
Forehand ±0.0 +0.8 −3.5 −2.7 −0.1 +1.4 +1.3 +2.6
Backhand −0.2 +0.2 −2.3 −2.3 +0.1 +0.6 −0.2 +0.6
Slice ±0.0 −0.6 −0.5 −1.0 −0.1 −1.2 −0.1 −1.3
Net ±0.0 +0.1 −0.3 −0.2 +0.3 −0.1 +1.3 +1.4
Touch ±0.0 +0.2 −1.0 −0.9 ±0.0 −0.1 ±0.0 −0.1
All shots −0.2+1.0 −9.4−8.7 ±0.0−0.5 +0.1−0.4

Set by set

SetHubert HurkaczEthan QuinnNet, Hubert
1−5.7−1.0 −4.7
2−3.0+0.6 −3.6

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.

Hubert Hurkacz serving

SetWideBodyT
1 38% 63% – 62% 46%
2 68% 74% 4% 0% 29% 63%

Within sets +0.03 per 100 first serves, every two to three service games

Ethan Quinn serving

SetWideBodyT
1 48% 82% 4% 0% 48% 73%
2 63% 80% – 38% 89%

Within sets +0.39 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.

Hubert Hurkacz

3.7 points left on the table across 138 shots 2.65 per 100 shots

  1. Return of a 1st serve, wide, deuce court hit FH down the line ×3; FH crosscourt rates higher · 0.21 pts
  2. Rally, shots 5–8: lob to your middle, you at net hit Smash through the middle ×1; Smash crosscourt rates higher · 0.19 pts
  3. Return +1: drive to your forehand side hit FH through the middle ×3; FH crosscourt rates higher · 0.18 pts
  4. Return of a 1st serve, wide, deuce court, server rushing the net hit FH through the middle ×2; FH crosscourt rates higher · 0.15 pts

Ethan Quinn

3.5 points left on the table across 134 shots 2.62 per 100 shots

  1. Return of a 1st serve, T, deuce court hit BH slice down the line ×2; BH slice crosscourt rates higher · 0.23 pts
  2. Serve +1: deep return to your middle hit FH through the middle ×3; FH crosscourt rates higher · 0.22 pts
  3. Serve +1: drive to your backhand side, you at net hit BH volley through the middle ×1; BH volley crosscourt rates higher · 0.21 pts
  4. Return of a 1st serve, wide, ad court hit BH slice down the line ×1; BH slice crosscourt rates higher · 0.17 pts