RallyIQ

Doha · F · Hard · 5 Jan 2013

Nikolay Davydenko v Richard Gasquet

99–104 in points · Richard Gasquet won

Why it went the way it did

Richard Gasquet won 6.2 more points than Nikolay Davydenko relative to what the serve alone predicted. Nikolay Davydenko's biggest leaks: net execution −1.5, backhand execution −1.3, slice shot selection −0.8.

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.

ShotNikolay DavydenkoRichard Gasquet
DirSelExecTotalDirSelExecTotal
Serve 1st −0.5 −0.2 −0.1 −0.8 +0.4 +0.1 −1.8 −1.3
Serve 2nd ±0.0 ±0.0 +0.6 +0.6 ±0.0 ±0.0 −1.1 −1.1
Return −0.7 +0.6 +0.6 +0.5 +0.4 +1.6 +5.0 +7.1
Forehand +0.2 +3.0 +1.2 +4.4 −0.2 +1.8 +1.5 +3.1
Backhand ±0.0 −0.7 −1.3 −2.0 +0.2 −0.1 +4.7 +4.7
Slice ±0.0 −0.8 ±0.0 −0.7 +0.1 −5.2 +0.1 −4.9
Net ±0.0 +0.5 −1.5 −1.0 −0.3 ±0.0 +0.9 +0.6
Touch ±0.0 −0.2 +0.2 +0.1 +0.2 −0.8 −0.4 −0.9
All shots −0.9+2.2 −0.3+1.0 +0.8−2.5 +8.9+7.2

Set by set

SetNikolay DavydenkoRichard GasquetNet, Nikolay
1+4.0+2.8 +1.3
2+0.5+1.6 −1.1
3−3.5+2.8 −6.4

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.

Nikolay Davydenko serving

SetWideBodyT
1 39% 71% 17% 67% 44% 56%
2 45% 61% 10% 100% 45% 56%
3 36% 54% 28% 30% 36% 46%

Set to set +0.17 per 100 first serves in sets 2+

Within sets −0.43 per 100 first serves, every two to three service games

Richard Gasquet serving

SetWideBodyT
1 58% 57% – 42% 60%
2 53% 70% – 47% 60%
3 52% 67% 4% 0% 43% 60%

Set to set +0.40 per 100 first serves in sets 2+

Within sets +0.32 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.

Nikolay Davydenko

10.5 points left on the table across 496 shots 2.13 per 100 shots

  1. Return of a 1st serve, wide, deuce court hit FH down the line ×8; FH crosscourt rates higher · 0.56 pts
  2. Rally, shots 5–8: drive to your backhand side hit BH through the middle ×13; BH crosscourt rates higher · 0.50 pts
  3. Return of a 2nd serve, wide, ad court hit BH through the middle ×8; BH crosscourt rates higher · 0.44 pts
  4. Rally, shots 5–8: drive to your forehand side, you at net hit FH volley down the line ×3; FH volley crosscourt rates higher · 0.42 pts

Richard Gasquet

10.8 points left on the table across 486 shots 2.23 per 100 shots

  1. Rally, shots 5–8: drive to your backhand side hit BH through the middle ×16; BH crosscourt rates higher · 0.62 pts
  2. Long rally, 9+: drive to your backhand side hit BH slice through the middle ×8; BH slice crosscourt rates higher · 0.56 pts
  3. Rally, shots 5–8: drive to your forehand side hit FH through the middle ×10; FH crosscourt rates higher · 0.51 pts
  4. Long rally, 9+: drive to your backhand side hit BH through the middle ×9; BH crosscourt rates higher · 0.38 pts