Wimbledon, Qualification ATP: Roman Safiullin vs Jerome Kym

Platform comparison

Active sub-markets

Market context

The underlying event is the first-round qualifying match at Wimbledon between Roman Safiullin, ranked ATP 127, and Jerome Kym, ranked ATP 197, scheduled for 5:00 AM ET on 25 June 2026. Safiullin recently secured a straight-sets victory against Coppejans in the preceding round, demonstrating strong form on grass, whereas Kym has won only three of his last four matches. The market’s current crowd-implied probability of 0% for Safiullin advancing is anomalous given his superior ranking and recent performance, diverging sharply from traditional bookmakers like FanDuel and 1xBet, which typically price Safiullin as the clear favourite with decimal odds reflecting a 70–80% win chance.

Historical precedents in Wimbledon qualification show that lower-ranked players rarely overturn a 70+ point ATP gap without external factors such as injury or weather delays, making the 0% probability a likely liquidity artefact rather than a genuine risk assessment. Platforms like Kalshi, which use implied probability and require KYC, may suppress such extreme odds due to stricter risk controls, whereas Polymarket’s permissionless structure allows unbalanced liquidity to persist, creating a divergence in pricing efficiency. Traders should monitor official ATP injury reports and the Wimbledon weather schedule for the next 24 hours, as a delay beyond seven days would trigger a 50–50 resolution, a dependency rarely priced accurately on fee-heavy platforms like Betfair.

Recent coverage from Tennis.com confirms both players are confirmed for the match with no reported injuries, suggesting the 0% probability is a market inefficiency rather than a factual outcome [2]. The fee structures of Smarkets and Kalshi, which charge commissions on winnings, may discourage arbitrage on such mispriced markets, while Robinhood’s zero-fee model could attract capital to correct the discrepancy. Traders must watch for any late withdrawals or schedule changes, as these are the only catalysts that could justify the current pricing, though current data indicates no such events are imminent.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Wimbledon, Qualification ATP: Roman Safiullin vs Jerome Kym specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). PolyGram routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, 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.

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 PolyGram?

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

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.