Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Sport Prediction Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Sport Prediction → |
Polymarket polymarket.com |
100% | 0% | 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
| Centurion 2: Alexander Donski vs Edward Winter | 100% Alexander Donski | 0% Edward Winter |
| Completed Match | 100% YES | 0% NO |
| Centurion 2: Alexander Donski vs Edward Winter Match O/U 21.5 | 100% Over | 0% Under |
| Centurion 2: Alexander Donski vs Edward Winter Set 1 O/U 8.5 | 100% Over | 0% Under |
| Centurion 2: Alexander Donski vs Edward Winter Match O/U 22.5 | 100% Over | 0% Under |
| Centurion 2: Alexander Donski vs Edward Winter Set 1 O/U 9.5 | 100% Over | 0% Under |
Market context
Alexander Donski and Edward Winter are scheduled to meet in the Centurion 2 tournament on 3 June 2026 at 4:00 AM ET, with the settlement window closing on 10 June. The 100% implied probability for Donski reflects either significant information asymmetry favouring his advancement or a market structure where one outcome has been heavily backed without corresponding liquidity on the alternative.
Historical precedent suggests that extreme probabilities in lower-tier professional tennis matches often reflect incomplete information rather than certainty. Matches at smaller Challenger-level or exhibition events frequently see late withdrawals, scheduling disruptions, or unexpected competitive results that contradict pre-match consensus. The seven-day grace period embedded in the resolution criteria creates a buffer for delays common in regional tournaments, though it also means traders must monitor whether either player sustains injury or receives late-notice scheduling conflicts in the week preceding the match.
Traders should track official Centurion 2 draw confirmations and any updates from the ATP or tournament organisers regarding player participation. Recent form data for both players—particularly surface performance on the event's court type and head-to-head records if available—will become material as the match date approaches. Any coaching changes, injury reports, or withdrawal announcements from either camp in the five days before play would warrant reassessment of the current odds, given that the market's current pricing leaves no room for uncertainty.
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
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Is this market available outside the US?
- Sport Prediction 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 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Sport Prediction triggers a quick verification flow that finishes in minutes.
Trade Centurion 2: Alexander Donski vs Edward Winter on Sport Prediction
Live order book, 0% fees, USDC settlement in seconds.
Trade on Sport Prediction →