RallyIQ

Monte Carlo Masters · R16 · Clay · 9 Apr 2026

Joao Fonseca v Matteo Berrettini

59–36 in points · Joao Fonseca won

Why it went the way it did

Joao Fonseca won 12.3 more points than Matteo Berrettini relative to what the serve alone predicted. Matteo Berrettini's biggest leaks: slice shot selection −4.5, forehand execution −4.5, slice execution −1.4.

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.

ShotJoao FonsecaMatteo Berrettini
DirSelExecTotalDirSelExecTotal
Serve 1st ±0.0 −0.1 +3.9 +3.9 +0.2 −0.1 −0.9 −0.8
Serve 2nd ±0.0 ±0.0 +1.1 +1.1 +0.1 ±0.0 +3.0 +3.0
Return −0.1 −0.6 +2.3 +1.6 +0.1 −0.7 +0.9 +0.4
Forehand +0.4 +0.6 +0.1 +1.0 +0.4 +1.5 −4.5 −2.7
Backhand +0.1 +0.5 +0.7 +1.4 +0.2 −0.2 −0.8 −0.8
Slice −0.1 −3.5 +0.4 −3.3 +0.1 −4.5 −1.4 −5.8
Net +0.1 +0.7 −0.3 +0.5 +0.1 +0.3 +0.1 +0.5
Touch ±0.0 +0.1 +0.3 +0.3 ±0.0 ±0.0 +0.3 +0.3
All shots +0.3−2.3 +8.4+6.4 +1.2−3.8 −3.3−5.9

Set by set

SetJoao FonsecaMatteo BerrettiniNet, Joao
1+2.9−3.2 +6.1
2+3.6−2.7 +6.2

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.

Joao Fonseca serving

SetWideBodyT
1 48% 82% 9% 100% 43% 90%
2 57% 75% 10% 50% 33% 57%

Within sets +0.48 per 100 first serves, every two to three service games

Matteo Berrettini serving

SetWideBodyT
1 54% 53% – 46% 69%
2 48% 45% 4% 0% 48% 36%

Within sets +0.23 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.

Joao Fonseca

3.9 points left on the table across 163 shots 2.40 per 100 shots

  1. Long rally, 9+: drive to your forehand side, you at net hit FH volley through the middle ×1; FH volley crosscourt rates higher · 0.26 pts
  2. Return of a 1st serve, T, ad court hit FH down the line ×1; FH inside-in rates higher · 0.18 pts
  3. Return +1: drive to your backhand side hit BH slice through the middle ×2; BH slice crosscourt rates higher · 0.17 pts
  4. Return of a 2nd serve, wide, deuce court hit FH through the middle ×2; FH inside-in rates higher · 0.16 pts

Matteo Berrettini

3.8 points left on the table across 167 shots 2.26 per 100 shots

  1. Rally, shots 5–8: drive to your backhand side, you at net hit BH volley through the middle ×1; BH volley crosscourt rates higher · 0.26 pts
  2. Rally, shots 5–8: volley to your backhand side, opponent at net hit BH slice through the middle ×1; BH slice down the line rates higher · 0.19 pts
  3. Return of a 2nd serve, wide, deuce court hit FH down the line ×2; FH inside-in rates higher · 0.19 pts
  4. Return +1: drive to your forehand side hit FH slice through the middle ×2; FH slice crosscourt rates higher · 0.12 pts