Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Best Prediction Markets Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Best Prediction Markets → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Best Prediction Markets → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Best Prediction Markets → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Best Prediction Markets → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Best Prediction Markets → |
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 Best Prediction Markets.
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 underlying event is the ATP Wimbledon qualifying match between Roman Safiullin and Jerome Kym, scheduled for 5:00 AM ET on 25 June 2026. Safiullin, ranked 127, faces Kym, ranked 197, on grass. The prediction market for Safiullin advancing shows a 0% implied probability, a stark divergence from sportsbook lines where Safiullin is priced as a clear favourite, with Robinhood offering -2.5 games at 64¢ and oddschecker listing him as the outright winner. Analyst consensus from TennisTemple and Tennis.com also treats Safiullin as the likely victor, citing his recent straight-sets win against Coppejans and superior point-scoring efficiency.
Historical qualifying rounds at Wimbledon often see lower-ranked players struggle on grass, yet Safiullin’s prior form suggests he can overcome this. Traders should monitor live score updates from Tennis.com and LiveScore, as well as any weather-related delays that could push the match beyond the seven-day settlement window. A recent H2H prediction from Tennistonic confirms Safiullin’s advantage, noting his 73-point performance in the previous round. Key dependencies include Safiullin’s fitness post-Coppejans match and Kym’s grass-court adaptation, both critical for the market’s resolution before 2026-07-02. No moralising is needed; the facts show a clear mismatch between prediction-market pricing and real-world odds.
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
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
- Is this market available outside the US?
- Best Prediction Markets 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.
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Best Prediction Markets triggers a quick verification flow that finishes in 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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