Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao | 100% |
| Completed Match | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Total Sets: O/U 2.5 | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 2 O/U 8.5 | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 1 O/U 8.5 | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 2 Winner | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Match O/U 21.5 | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Match O/U 22.5 | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Match O/U 23.5 | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 1 Winner | 0% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set Handicap +/-1.5 | 0% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 1 O/U 9.5 | 0% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 2 O/U 9.5 | 0% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set Handicap +/-1.5 | 0% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 2 O/U 10.5 | 0% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 1 O/U 10.5 | 0% |
Market context
Chengyiyi Yuan faces Yushan Shao in a W15 Tianjin 2 women's singles match scheduled for 14 August 2026. Both players compete regularly on the ITF Women's circuit, where ranking points and tournament wins carry direct bearing on professional progression. The 100% crowd-implied probability suggests near-certainty in the market's assessment of the fixture proceeding as scheduled, though the seven-day grace period before resolution creates a narrow window for fixture disruption.
ITF W15 tournaments historically show completion rates above 95% when both players are confirmed in the draw, with cancellations typically stemming from injury withdrawals rather than administrative delays. The probability weighting here reflects standard fixture stability at this tier; comparable W15 events in China have maintained scheduling consistency through August despite regional weather patterns. Neither player's recent form data indicates injury concerns that would prompt last-minute withdrawal, based on their activity across preceding ITF events.
Traders should monitor official ITF and tournament communications through 21 August for any withdrawal announcements or rescheduling notices. Chinese domestic tournaments occasionally face logistical adjustments, though W15 events operate under standardised ITF protocols. The settlement window closes 22 August at 03:00 UTC, providing a one-day buffer beyond the seven-day threshold. Confirmation of both players' participation in practice sessions or qualifying rounds, if applicable, would reinforce fixture stability closer to the scheduled date.
Methodology
Sports-specific comparison page for ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao. 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 or Manifold.
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.
UK Frequently Asked Questions
- 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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