Harri Heliovaara / Henry Patten vs Theo Arribage / Albano Olivetti prediction for April 30, 2026: Our Monte Carlo simulation ran 10,000 game iterations and projects Theo Arribage / Albano Olivetti 0 - Harri Heliovaara / Henry Patten 0. Theo Arribage / Albano Olivetti is favored with a 54.4% win probability.
Theo Arribage / Albano Olivetti
1500
Clay Elo
VS
Clay • ATP
Harri Heliovaara / Henry Patten
1500
Clay Elo
Match Win Probability
Theo Arribage / Albano OlivettiHarri Heliovaara / Henry Patten
Clay
Surface
ATP Madrid - Doubles
Tournament
10,000
Simulations
Calibrated accuracy at this confidence: 59.2% (1,297 games)
Match Context
Tournament
ATP Madrid - Doubles
Surface
Clay
Format
Best of 3 · ATP
Surface Elo Ratings (Clay)
Harri Heliovaara / Henry Patten
Theo Arribage / Albano Olivetti
Harri Heliovaara / Henry Patten leads by 0 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%
Harri Heliovaara / Henry Patten SPW
60.3%
Below tour avg
Theo Arribage / Albano Olivetti SPW
60.3%
Below tour avg
● Serve statistics are nearly identical — expect a close match
Market Odds & Model Edge
Harri Heliovaara / Henry Patten ML
-375
Model: 46%
Edge: -33.3%
Theo Arribage / Albano Olivetti ML
+287
Model: 54%
Edge: +28.6%
Model Projection
Theo Arribage / Albano Olivetti ML +287 · +28.6% edge
Key Matchup Factors
- Players are closely matched (0-point Elo gap)
- Clay surface reduces serve dominance — expect more breaks of serve and longer rallies
- Theo Arribage / Albano Olivetti has the stronger serve profile on this surface
Surface Elo v1.0 · Barnett-Clarke serve model · 10,000 simulations · ATP
Edge Analysis
Moneyline
Theo Arribage / Albano Olivetti 54.4%
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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 →