Sofia Costoulas vs Ayla Aksu prediction for July 20, 2026: Our Monte Carlo simulation ran 10,000 game iterations and projects Ayla Aksu 0 - Sofia Costoulas 0. Sofia Costoulas is favored with a 54.1% win probability.
Ayla Aksu
1472
Hard Elo
VS
Hard • WTA
Sofia Costoulas
1534
Hard Elo
Match Win Probability
Ayla AksuSofia Costoulas
Hard
Surface
WTA Prague
Tournament
10,000
Simulations
Calibrated accuracy at this confidence: 49.9% (13,066 games)
Match Context
Tournament
WTA Prague
Surface
Hard
Format
Best of 3 · WTA
Surface Elo Ratings (Hard)
Sofia Costoulas
Ayla Aksu
Sofia Costoulas leads by 62 Elo points on Hard
Serve & Return Analysis
Serve Points Won % (SPW) is the single most predictive metric in tennis. WTA average on Hard: 56.5%
Sofia Costoulas SPW
57.9%
Above tour avg
Ayla Aksu SPW
56.2%
Below tour avg
● Sofia Costoulas has a slight serve edge (+1.7%)
Odds & Edge
Key Matchup Factors
- Sofia Costoulas has a moderate 62-point Elo edge on Hard
- Hard court provides a neutral surface — favors all-court players
- Sofia Costoulas has the stronger serve profile on this surface
Surface Elo v1.0 · Barnett-Clarke serve model · 10,000 simulations · WTA
Edge Analysis
Moneyline
Sofia Costoulas 54.1%
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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 →
Permanent record: this game page is retired 90 days after the event. The full graded Tennis 2026 record — every pick, win rate, units and ROI — lives on the Tennis 2026 season report card.