Billy Harris vs Francisco Comesana prediction for May 4, 2026: Our Monte Carlo simulation ran 10,000 game iterations and projects Francisco Comesana 0 - Billy Harris 0. Francisco Comesana is favored with a 62.8% win probability.
Francisco Comesana
1527
Clay Elo
VS
Clay • ATP
Billy Harris
1426
Clay Elo
Match Win Probability
Francisco ComesanaBilly Harris
Clay
Surface
ATP Italian Open
Tournament
10,000
Simulations
Calibrated accuracy at this confidence: 57.8% (1,457 games)
Match Context
Tournament
ATP Italian Open
Surface
Clay
Format
Best of 3 · ATP
Surface Elo Ratings (Clay)
Billy Harris
Francisco Comesana
Francisco Comesana leads by 102 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%
Billy Harris SPW
66.9%
Above tour avg
Francisco Comesana SPW
70.1%
Above tour avg
● Francisco Comesana has a significant serve advantage (+3.2%)
Key Matchup Factors
- Francisco Comesana holds a commanding 102-point Elo advantage on Clay
- Clay surface reduces serve dominance — expect more breaks of serve and longer rallies
- Francisco Comesana has the stronger serve profile on this surface
Surface Elo v1.0 · Barnett-Clarke serve model · 10,000 simulations · ATP
Edge Analysis
Moneyline
Francisco Comesana 62.8%
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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 →