Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Sport Prediction Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Sport Prediction → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Sport Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Sport Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Sport Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Sport Prediction → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Sport Prediction.
Active sub-markets
| Wimbledon, Qualification ATP: Roman Safiullin vs Jerome Kym Set 1 Winner | 0% Safiullin | 100% Kym |
| Wimbledon, Qualification ATP: Roman Safiullin vs Jerome Kym Set Handicap +/-1.5 | 0% Safiullin | 100% Kym |
| Wimbledon, Qualification ATP: Roman Safiullin vs Jerome Kym Set Handicap +/-2.5 | 0% Safiullin | 100% Kym |
| Wimbledon, Qualification ATP: Roman Safiullin vs Jerome Kym Set 4 Winner | 100% Safiullin | 0% Kym |
| Wimbledon, Qualification ATP: Roman Safiullin vs Jerome Kym Match O/U 40.5 | 100% Over | 0% Under |
| Wimbledon, Qualification ATP: Roman Safiullin vs Jerome Kym Total Sets: O/U 3.5 | 100% Over 3.5 | 0% Under 3.5 |
Market context
The real-world event is the ATP Wimbledon qualifying match between Roman Safiullin and Jerome Kym, scheduled for 11:00 AM on Court 10 today, where Safiullin advances if he wins. Safiullin entered the qualifications with a straight-sets victory over Coppejans, scoring 73 points and demonstrating strong grass-court form, while Kym, a taller Swiss player ranked 197, faces a significant hurdle against Safiullin’s 127 ranking and prior head-to-head success[1][7]. Historical precedent shows Safiullin previously defeated Kym 3–2 in a qualifying-final, indicating a clear psychological and tactical edge that aligns with the market’s 0% probability for Kym to advance[2].
Traders should monitor the official start time confirmation and any weather delays, as Wimbledon qualifiers are vulnerable to rain interruptions that could push the match beyond the seven-day settlement window, triggering a 50–50 resolution[1]. Safiullin’s recent coaching stability and lack of key absences contrast with Kym’s inconsistent recent results, making Safiullin’s momentum the primary catalyst for a decisive win[8]. No major injury announcements have been released, but the live score feed on Tennis.com will provide immediate verification of match commencement and early set performance, which is critical given the narrow settlement deadline of 2026-07-02[4]. The absence of Kym in recent high-profile matches further suggests limited preparation for this specific grass-court challenge, reinforcing Safiullin’s dominance in this matchup.
Methodology
We track Wimbledon, Qualification ATP: Roman Safiullin vs Jerome Kym on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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?
- On Sport Prediction, 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.
- 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 does it cost to trade on Sport Prediction?
- Zero. Sport Prediction 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.
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