Swiss Open: Raphael Collignon vs Lorenzo Sonego

Platform comparison

Market context

Raphael Collignon faces Lorenzo Sonego in the Swiss Open Gstaad round of 16, a contest scheduled for 4:00 AM ET on 15 July 2026. The crowd-implied probability of 87% YES for Collignon to advance significantly exceeds the consensus found in major handicapping models, which project his win chance between 61% and 66.7% [3][4][5]. Historical data from similar ATP matchups suggests that when crowd sentiment diverges by over 20 percentage points from algorithmic projections, the market often overreacts to recent form rather than underlying surface performance, creating a potential value spot for the underdog.

Traders should monitor Collignon’s pre-match warm-up and any late schedule adjustments, as a slow start against Sonego could negate his slight favourite status [2]. Sonego, priced at +154, offers a contrarian angle if the Belgian struggles with early momentum, a vulnerability noted in recent previews [2]. Dimers’ advanced model, which assigns Collignon a 61% probability, highlights the gap between simulation and crowd pricing, suggesting the 87% figure may be inflated [4]. With the settlement window ending in 2026, immediate catalysts include official match confirmations and any injury updates released before the 4:00 AM ET start time.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Swiss Open: Raphael Collignon vs Lorenzo Sonego across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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 Who Will Win 2026. 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.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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.