RallyIQ

Davis Cup Qualifiers · RR · Hard · 2 Feb 2024

Tallon Griekspoor v Marc Andrea Huesler

81–72 in points · Tallon Griekspoor won

Why it went the way it did

Tallon Griekspoor won 4.0 more points than Marc Andrea Huesler relative to what the serve alone predicted. Marc Andrea Huesler's biggest leaks: return execution −2.4, forehand execution −2.2, backhand execution −1.8.

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.

ShotTallon GriekspoorMarc Andrea Huesler
DirSelExecTotalDirSelExecTotal
Serve 1st ±0.0 ±0.0 +1.6 +1.6 ±0.0 +0.6 +0.2 +0.8
Serve 2nd ±0.0 ±0.0 −0.1 ±0.0 ±0.0 ±0.0 +1.2 +1.1
Return −0.3 −0.9 −4.2 −5.4 −0.2 −0.2 −2.4 −2.9
Forehand +0.8 +2.5 +0.3 +3.6 −0.2 +1.8 −2.2 −0.7
Backhand +0.3 +0.4 −0.1 +0.5 ±0.0 +0.6 −1.8 −1.2
Slice −0.2 −1.7 +0.3 −1.6 ±0.0 −1.4 ±0.0 −1.4
Net +0.2 +0.3 +0.5 +1.1 +0.3 −0.5 +0.7 +0.4
Touch −0.2 −0.8 +0.5 −0.4 +0.2 −0.7 ±0.0 −0.4
Other ±0.0 ±0.0 ±0.0 ±0.0 −0.1 −0.3 −0.1 −0.4
All shots +0.6−0.2 −1.0−0.6 −0.1−0.2 −4.3−4.6

Set by set

SetTallon GriekspoorMarc Andrea HueslerNet, Tallon
1−1.4−2.1 +0.7
2+0.8−2.5 +3.3

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.

Tallon Griekspoor serving

SetWideBodyT
1 57% 60% 11% 60% 32% 71%
2 56% 94% 6% 50% 38% 83%

Set to set +0.16 per 100 first serves in sets 2+

Within sets +0.47 per 100 first serves, every two to three service games

Marc Andrea Huesler serving

SetWideBodyT
1 62% 65% 10% 75% 29% 50%
2 35% 67% 12% 75% 53% 83%

Set to set −1.68 per 100 first serves in sets 2+

Within sets −0.78 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.

Tallon Griekspoor

4.9 points left on the table across 210 shots 2.33 per 100 shots

  1. Return of a 2nd serve, wide, ad court hit BH through the middle ×5; BH crosscourt rates higher · 0.28 pts
  2. Return of a 1st serve, wide, ad court hit BH slice through the middle ×3; BH slice crosscourt rates higher · 0.23 pts
  3. Return +1: slice to your backhand side, opponent at net hit BH lob through the middle ×1; BH lob crosscourt rates higher · 0.19 pts
  4. Return of a 2nd serve, T, ad court hit FH through the middle ×2; FH inside-out rates higher · 0.18 pts

Marc Andrea Huesler

5.9 points left on the table across 200 shots 2.96 per 100 shots

  1. Return of a 1st serve, wide, ad court hit FH through the middle ×3; FH inside-out rates higher · 0.31 pts
  2. Serve +1: deep return to your middle hit FH through the middle ×4; FH crosscourt rates higher · 0.29 pts
  3. Return of a 2nd serve, T, ad court hit BH through the middle ×3; BH inside-in rates higher · 0.26 pts
  4. 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