Nicolas Mejia vs Adolfo Daniel Vallejo prediction for June 29, 2026: Our Monte Carlo simulation ran 10,000 game iterations and projects Adolfo Daniel Vallejo 0 - Nicolas Mejia 0. Adolfo Daniel Vallejo is favored with a 55.0% win probability.
Adolfo Daniel Vallejo
1533
Grass Elo
VS
Grass • ATP
Nicolas Mejia
1420
Grass Elo
Match Win Probability
Adolfo Daniel VallejoNicolas Mejia
Grass
Surface
ATP Wimbledon
Tournament
10,000
Simulations
Calibrated accuracy at this confidence: 54.2% (6,507 games)
Match Context
Tournament
ATP Wimbledon
Surface
Grass
Format
Best of 5 · ATP
Surface Elo Ratings (Grass)
Nicolas Mejia
Adolfo Daniel Vallejo
Adolfo Daniel Vallejo leads by 113 Elo points on Grass
Serve & Return Analysis
Serve Points Won % (SPW) is the single most predictive metric in tennis. ATP average on Grass: 63.5%
Nicolas Mejia SPW
64.9%
Above tour avg
Adolfo Daniel Vallejo SPW
66.0%
Above tour avg
● Adolfo Daniel Vallejo has a slight serve edge (+1.0%)
Market Odds & Model Edge
Nicolas Mejia ML
+127
Model: 45%
Edge: +1.0%
Adolfo Daniel Vallejo ML
-143
Model: 55%
Edge: -3.9%
Key Matchup Factors
- Adolfo Daniel Vallejo holds a commanding 113-point Elo advantage on Grass
- Grass surface amplifies serve advantage — expect fewer breaks, more tiebreaks
- Adolfo Daniel Vallejo has the stronger serve profile on this surface
Surface Elo v1.0 · Barnett-Clarke serve model · 10,000 simulations · ATP
Edge Analysis
Moneyline
Adolfo Daniel Vallejo 55.0%
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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 →