Claire Liu vs Lulu Sun prediction for May 21, 2026: Our Monte Carlo simulation ran 10,000 game iterations and projects Lulu Sun 0 - Claire Liu 0. Claire Liu is favored with a 54.7% win probability.
Lulu Sun
1552
Clay Elo
VS
Clay • WTA
Claire Liu
1548
Clay Elo
Match Win Probability
Lulu SunClaire Liu
Clay
Surface
WTA French Open
Tournament
10,000
Simulations
Calibrated accuracy at this confidence: 54.4% (3,723 games)
Match Context
Tournament
WTA French Open
Surface
Clay
Format
Best of 3 · WTA
Surface Elo Ratings (Clay)
Claire Liu
Lulu Sun
Lulu Sun leads by 4 Elo points on Clay
Serve & Return Analysis
Serve Points Won % (SPW) is the single most predictive metric in tennis. WTA average on Clay: 56.5%
Claire Liu SPW
58.3%
Above tour avg
Lulu Sun SPW
58.0%
Above tour avg
● Serve statistics are nearly identical — expect a close match
Market Odds & Model Edge
Claire Liu ML
-182
Model: 55%
Edge: -9.8%
Lulu Sun ML
+152
Model: 45%
Edge: +5.6%
Model Projection
Lulu Sun ML +152 · +5.6% edge
Key Matchup Factors
- Players are closely matched (4-point Elo gap)
- Clay surface reduces serve dominance — expect more breaks of serve and longer rallies
- Claire Liu has the stronger serve profile on this surface
Surface Elo v1.0 · Barnett-Clarke serve model · 10,000 simulations · WTA
Edge Analysis
Moneyline
Claire Liu 54.7%
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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 →