Liege: Gauthier Onclin vs Florian Broska

Platform comparison

Market context

The underlying event is a scheduled ATP Challenger tennis match in Liege between Belgian players Gauthier Onclin and Florian Broska, set to begin at 5:00 AM ET on July 9, 2026. Onclin, a 25-year-old right-handed player who turned pro in 2016, currently holds an ATP ranking of 178 with a career-high of 178 achieved in June 2026[1][4]. The market resolves to Onclin if he advances, to Broska if he wins, and to a 50-50 split if the match is cancelled, tied, or delayed beyond seven days without a winner[3].

Historically, prediction markets for Challenger-level matches with a 0% crowd-implied probability often reflect severe data asymmetry or a known injury rather than a genuine competitive mismatch, as seen in recent ATP Challenger events where late withdrawals skewed odds before official confirmation[2]. In comparable cases, programmatically evaluating such a market requires conditional orders that trigger only upon verified player status updates, avoiding blind execution on initial odds that may ignore pending medical announcements or schedule dependencies[6]. Traders should monitor official ATP Tour player status feeds and local Liege tournament schedules for any delay notices, as even minor weather disruptions in Belgium can extend matches beyond the seven-day settlement window[5]. Recent news from the ATP Tour confirms Onclin’s active participation in the 2026 season, yet no specific injury report has been published for Broska, suggesting the 0% probability may stem from unverified withdrawal rumours rather than factual absence[7].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Liege: Gauthier Onclin vs Florian Broska across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi Fees, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi Fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.