Wimbledon, Qualification ATP: Roman Safiullin vs Jerome Kym

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Market context

The real-world event is the ATP Wimbledon qualifying match between Roman Safiullin and Jerome Kym, scheduled for 5:00 AM ET on 25 June 2026, where the market asks whether Safiullin advances past Kym. In prediction markets, a YES share pays out if the stated outcome occurs (here, Safiullin winning), while a NO share pays out if it does not; the current 0% YES price implies the market expects Safiullin to lose or the match to be void. Historical precedents in Wimbledon qualifiers show that 0% prices often reflect either a severe mismatch in form or a high risk of cancellation, as seen in past grass-court qualifiers where top-ranked players withdrew after rain delays, leaving markets to resolve at 50-50.

Traders should monitor official tournament announcements for player withdrawals, weather updates affecting Court 10, and Safiullin’s recent straight-sets win against Coppejans, which signals strong grass readiness [1]. The key dependency is whether Safiullin completes the match without injury, given his 73-point performance in the prior round and his age advantage over Kym (28 vs 23) [7]. Recent odds data from Robinhood shows Safiullin favoured by 2.5 games, reinforcing the low YES probability for Kym advancing [2]. Any delay beyond seven days or a tie would trigger the 50-50 resolution clause, so timely schedule confirmations are critical.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On Prediction Market UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Prediction Market UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 it cost to trade on Prediction Market UK?

Zero. Prediction Market UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.