Iga Swiatek vs Marta Kostyuk prediction for May 30, 2026: Our Monte Carlo simulation ran 10,000 game iterations and projects Marta Kostyuk 0 - Iga Swiatek 0. Iga Swiatek is favored with a 74.7% win probability.
Marta Kostyuk
1684
Clay Elo
VS
Clay • WTA
Iga Swiatek
2042
Clay Elo
Match Win Probability
Marta KostyukIga Swiatek
Clay
Surface
WTA French Open
Tournament
10,000
Simulations
Calibrated accuracy at this confidence: 69.0% (3,925 games)
Match Context
Tournament
WTA French Open
Surface
Clay
Format
Best of 3 · WTA
Surface Elo Ratings (Clay)
Iga Swiatek
Marta Kostyuk
Iga Swiatek leads by 359 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%
Iga Swiatek SPW
62.3%
Above tour avg
Marta Kostyuk SPW
52.4%
Below tour avg
● Iga Swiatek has a significant serve advantage (+9.9%)
Market Odds & Model Edge
Iga Swiatek ML
-256
Model: 75%
Edge: +2.8%
Marta Kostyuk ML
+227
Model: 25%
Edge: -5.3%
Key Matchup Factors
- Iga Swiatek holds a commanding 359-point Elo advantage on Clay
- Clay surface reduces serve dominance — expect more breaks of serve and longer rallies
- Iga Swiatek has the stronger serve profile on this surface
- Heavy favorite (Iga Swiatek at 75%) — ML value may be limited; consider live or set markets
Surface Elo v1.0 · Barnett-Clarke serve model · 10,000 simulations · WTA
Edge Analysis
Moneyline
Iga Swiatek 74.7%
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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 →