Wimbledon Great Britain Grass Grand Slam Semifinals

Jannik Sinner vs Novak Djokovic: AI Prediction | Games, Spread, Aces & Double Faults

Jannik Sinner

Rank: #1
90%
VS

Novak Djokovic

Rank: #7
10%
Expected Total Games: 37.6
Predicted Winner: Jannik Sinner

Why the Model Favors Jannik Sinner

The factors that drove this prediction, measured in win-probability points.

Recent record by level +9.9 Jannik Sinner
Surface fit +9.2 Jannik Sinner
Overall strength +7.9 Jannik Sinner
Overall record & opposition quality +7.6 Jannik Sinner
Age +5.5 Jannik Sinner

Starting from an even matchup, these factors move the model to 90% for Jannik Sinner. Computed with gradient-based attribution on our neural network — not editorial opinion. How to read this →

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Player Metrics

Jannik Sinner

Form Index: 64.4
ELO Rating: 2431.7
Glicko2 Rating: 2610.9
Current Fatigue (minutes): 870.0
Surface Strength:
Hard: 77.8
Clay: 85.3
Grass: 100.0
Serve Rating: 98.1
Return Rating: 97.6

Novak Djokovic

Form Index: 67.3
ELO Rating: 2080.2
Glicko2 Rating: 2011.7
Current Fatigue (minutes): 870.0
Surface Strength:
Hard: 56.9
Clay: 41.0
Grass: 55.2
Serve Rating: 96.4
Return Rating: 88.9

Recent Matches

Jannik Sinner

Novak Djokovic

Head-to-Head (Last 2 Seasons)

2
Jannik Sinner
vs
1
Novak Djokovic
Hard
0 - 1
Clay
1 - 0
Grass
1 - 0

Key Prediction Insights

This Wimbledon semifinal in Great Britain pits world No. 1 Jannik Sinner against Novak Djokovic on grass at a Grand Slam. The model strongly favors Sinner — predicted winner Jannik Sinner 89.66%, Novak Djokovic 10.34% — with an expected total of about 37.6 games in the match.

Match Analysis

The model’s edge for Sinner comes mainly from recent high-level form (+9.9 percentage points) and exceptional surface fit (+9.2 pp), with additional contributions from overall strength (+7.9 pp), record versus quality opposition (+7.6 pp) and age (+5.5 pp) all tilting toward Sinner. Those factor weights are reflected in the raw numbers: Sinner sits at rank 1 with an Elo of 2,431.67 and a surface strength index of 100.0, while Djokovic is ranked 7 with an Elo of 2,080.22 and a surface index of 55.20. Form indices are close — Djokovic 67.30, Sinner 64.39 — and both players show identical cumulative tournament fatigue (870 minutes), so freshness is comparable. Sinner’s serving and returning profiles are elite: mean serve index 98.13 and mean return index 97.55. Djokovic’s serve index is 96.45 and return index 88.91 — the return gap (>5 points) favors Sinner and helps explain projected break opportunities on a fast grass court. Over the last three matches at Wimbledon Sinner has dispatched opponents in straight sets (three 3-0 wins), while Djokovic also won three matches but with longer affairs (3-2, 3-1, 3-1), indicating Sinner’s recent dominance and cleaner rides through the draw.

Total Games Predictions

🎾
Expected Total Games in Match 37.6 Most likely outcome: 37 games

📊 Total Games Probability Distribution

Distribution

Probability of each total games outcome

Probability distribution chart for total games in Jannik Sinner versus Novak Djokovic. The X-axis shows possible total games values and the Y-axis shows the predicted probability percentage for each outcome.
Cumulative Probability (CDF)

Probability of total games ≤ X

Cumulative distribution function chart for total games in Jannik Sinner versus Novak Djokovic. The curve rises from 0% to 100%, showing the cumulative probability for each games total threshold.

Games Spread Predictions

📈
Expected Games Spread (Jannik Sinner - Novak Djokovic) +3.9 Most likely spread: +3 (Jannik Sinner wins 3 more games)

📊 Games Spread Probability Distribution

Distribution

Probability of each games spread outcome

Probability distribution chart for games spread in Jannik Sinner versus Novak Djokovic. Positive values indicate Jannik Sinner winning more games, negative values indicate Novak Djokovic winning more games.
Cumulative Probability (CDF)

Probability of spread ≤ X

Cumulative distribution function chart for games spread in Jannik Sinner versus Novak Djokovic. The curve shows the cumulative probability for each spread threshold.

Aces and Double Faults Predictions

The aces prediction is for a high-count match on grass: predicted aces total 23.03. The expected double faults are modest — expected double faults 6.53 — reflecting both players’ strong serving mechanics. Grass favors big servers and will likely boost the ace count; Sinner’s marginally higher serve index may add a few free points, though the serve-index gap is not large enough to dominate the tally.
🎯
Expected Total Aces 23.0 Most likely: 23 aces
Expected Total Double Faults 6.5 Most likely: 6 double faults

🎯 Aces Probability Distribution

Distribution

Probability of each ace count outcome

Probability distribution chart for total aces in Jannik Sinner versus Novak Djokovic. Higher ace counts are more likely on faster surfaces like grass.
Cumulative Probability (CDF)

Probability of aces ≤ X

Cumulative distribution function chart for total aces in Jannik Sinner versus Novak Djokovic. The curve shows the cumulative probability for each aces threshold.

Double Faults Probability Distribution

Distribution

Probability of each double fault count outcome

Probability distribution chart for double faults in Jannik Sinner versus Novak Djokovic. Clay surface matches tend to produce more double faults due to fatigue in longer rallies.
Cumulative Probability (CDF)

Probability of double faults ≤ X

Cumulative distribution function chart for double faults in Jannik Sinner versus Novak Djokovic. The curve shows the cumulative probability for each double faults threshold.

🎯 Match Format Predictions

Tiebreak Likelihood

Probability that any tiebreak is played in this match

55.9% Predicted: Tiebreak likely

Exact Score Distribution BO5

Probability of each set-by-set outcome (Jannik Sinner's perspective)

3-0 Most likely set score (45.0%)
Probability distribution of the final set score from Jannik Sinner's perspective. Format: BO5.

Final Prediction

Sinner’s advantage is driven first and foremost by his recent record at this level, reinforced by near-perfect grass suitability. Key factor to watch: Sinner’s return performance — the sizable return-index gap may be decisive in generating breaks on a typically serve-friendly surface.

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