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Sophia Biolay vs Madison Sieg

Tennis
2025-09-11 04:41
Start: 2025-09-11 14:30

Summary

Pick: home
EV: 0.159

Current Odds

Home 2.32|Away 1.565
Best Odds

Match Info

Match key: Sophia Biolay_Madison Sieg_2025-09-11

Analysis

Summary: We recommend a value bet on Sophia Biolay at 2.52 because our estimate of her win probability (~46%) implies fair odds (~2.174) lower than the offered price, producing positive EV (~15.9%).

Highlights

  • Market implies Sophia ~39.7% vs our estimate ~46%
  • Positive EV at current price: ~0.159 (15.9% ROI)

Pros

  • + Experience and larger career sample point to a higher true win probability
  • + Offered odds (2.52) are substantially above our fair odds (~2.174)

Cons

  • - Both players show recent losses; recent form is poor for each
  • - Madison's limited match sample increases variance and uncertainty despite underperformance

Details

We find value on the home player Sophia Biolay. The market prices Madison Sieg at 1.457 (implied ~68.6%) and Sophia at 2.52 (implied ~39.7%), but the underlying player profiles suggest a narrower gap. Sophia's large sample career (559-507) indicates a baseline winning ability (~52.5% career win rate) and comfort on multiple surfaces including clay and hard, while Madison has a small sample (10-21) and a lower career win rate (~32.3%). Recent form shows losses for both, but the experience and broader proven performance of Sophia lead us to estimate her true chance materially above the market-implied 39.7%. At our estimated true probability (46%), the implied fair odds are ~2.174, and the offered 2.52 represents positive expected value. We therefore recommend backing Sophia at the available 2.52 price.

Key factors

  • Experience gap: Sophia has extensive career match history vs Madison's small sample
  • Career win-rate differential favors Sophia (≈52.5% vs ≈32.3%)
  • Market overprices the away favorite (large implied probability despite limited Madison data)