Gabriel Diallo vs James Duckworth prediction for May 23, 2026: Our Monte Carlo simulation ran 10,000 game iterations and projects James Duckworth 0 - Gabriel Diallo 0. Gabriel Diallo is favored with a 61.4% 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: 58.1% (6,716 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
-169
Model: 61%
Edge: -1.4%
James Duckworth ML
+150
Model: 39%
Edge: -1.4%
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 61.4%
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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. Probabilities are calibrated using Bayesian methods and sized via the Kelly Criterion. Full methodology →