Liege: Andres Santamarta vs Gilles Arnaud Bailly

Platform comparison

Market context

The underlying event is a scheduled ATP-level tennis match in Liege between Spain’s Andres Santamarta Roig and Gilles Arnaud Bailly, set for 5:00 AM ET on 7 July 2026. Santamarta, an 18-year-old right-hander, recently lost 2–0 to Maks Kasnikowski in Brasov but holds a 33–20 singles win-loss record on the ATP tour with a 62.3% win rate[1][9]. His career-high ATP singles ranking is No. 604, achieved in February 2026, though current listings show him at No. 782[4][7].

Historically, markets assigning 0% probability to a player advancing in early-stage ATP events often reflect severe form dips, injury concerns, or unconfirmed line-up status rather than absolute elimination. Comparable cases from 2024–25 show that players with sub-60% win rates and recent straight-set losses can still advance if opponents withdraw or underperform, making the 0% figure a signal to monitor pre-match announcements rather than a final verdict[1][3].

Traders must watch for official entry confirmations from the Liege tournament organisers, any late injury reports from Santamarta’s team, and Bailly’s recent match history, which remains unverified in public databases. A key catalyst is the 24-hour pre-match player status update, typically released via ATP Tour’s official portal; any withdrawal or medical delay would shift the market toward the 50–50 resolution clause[8]. Until such news emerges, the 0% probability reflects current uncertainty, not certainty of loss.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Liege: Andres Santamarta vs Gilles Arnaud Bailly. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

Can I bet on individual matches?

Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.

What are live sports odds on Polymarket?

Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.