Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via World Cup 2026 Favorites) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Match O/U 21.5 | 100% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Set 1 O/U 8.5 | 100% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Total Sets: O/U 2.5 | 100% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Set 2 Winner | 100% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Match O/U 22.5 | 100% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Set 1 O/U 9.5 | 100% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Match O/U 23.5 | 100% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Set 1 O/U 10.5 | 100% |
| Completed Match | 49% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya | 5% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Set 1 Winner | 0% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Set 2 O/U 8.5 | 0% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Game Spread +/-3.5 | 0% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Set Handicap +/-1.5 | 0% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Set 2 O/U 9.5 | 0% |
| US Open WTA: Xinyu Wang vs Anna Kalinskaya Set 2 O/U 10.5 | 0% |
Market context
Based on real-money crowd forecasting, us open wta: xinyu wang vs anna kalinskaya stands at 100% likelihood according to current market consensus. This market refers to the tennis match between Xinyu Wang and Anna Kalinskaya in the US Open WTA, originally scheduled for September 2, 2026 at 11:00AM ET. This market will resolv…
Methodology
Football-specific comparison page for US Open WTA: Xinyu Wang vs Anna Kalinskaya. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
FAQ
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- What are live sports odds on Polymarket?
- Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.
- What's the difference between match odds and outright odds?
- Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.
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