Gabriel Diallo vs James Duckworth prediction for May 22, 2026: Our Monte Carlo simulation ran 10,000 game iterations and projects James Duckworth 0 - Gabriel Diallo 0. Gabriel Diallo is favored with a 61.3% win probability.
James Duckworth
1460
Clay Elo
VS
Clay • ATP
Gabriel Diallo
1585
Clay Elo
Match Win Probability
James DuckworthGabriel Diallo
Clay
Surface
ATP French Open
Tournament
10,000
Simulations
Calibrated accuracy at this confidence: 57.6% (3,811 games)
Match Context
Tournament
ATP French Open
Surface
Clay
Format
Best of 5 · ATP
Surface Elo Ratings (Clay)
Gabriel Diallo
James Duckworth
Gabriel Diallo leads by 125 Elo points on Clay
Serve & Return Analysis
Serve Points Won % (SPW) is the single most predictive metric in tennis. ATP average on Clay: 63.5%
Gabriel Diallo SPW
66.0%
Above tour avg
James Duckworth SPW
63.9%
Above tour avg
● Gabriel Diallo has a slight serve edge (+2.1%)
Market Odds & Model Edge
Gabriel Diallo ML
-171
Model: 61%
Edge: -1.8%
James Duckworth ML
+151
Model: 39%
Edge: -1.1%
Key Matchup Factors
- Gabriel Diallo holds a commanding 125-point Elo advantage on Clay
- Clay surface reduces serve dominance — expect more breaks of serve and longer rallies
- Gabriel Diallo has the stronger serve profile on this surface
Surface Elo v1.0 · Barnett-Clarke serve model · 10,000 simulations · ATP
Edge Analysis
Moneyline
Gabriel Diallo 61.3%
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How this prediction was generated: This page shows output from the Olympus Bets ATP/WTA Tennis Monte Carlo engine. Each game is simulated 10,000 times using real-time team data, injury reports, and current odds. Probabilities are calibrated using Bayesian methods and sized via the Kelly Criterion. Full methodology →