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 |
|---|---|
| Completed Match | 100% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Set 2 O/U 8.5 | 100% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Set 2 O/U 9.5 | 100% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Set Handicap +/-1.5 | 100% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Set Handicap +/-1.5 | 1% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen | 0% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Total Sets: O/U 2.5 | 0% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Match O/U 21.5 | 0% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Set 2 Winner | 0% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Set 1 O/U 8.5 | 0% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Set 1 Winner | 0% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Match O/U 22.5 | 0% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Set 1 O/U 9.5 | 0% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Set 2 O/U 10.5 | 0% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Match O/U 23.5 | 0% |
| ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen Set 1 O/U 10.5 | 0% |
Market context
Dabin Kim, a South Korean player ranked outside the top 500 on the WTA circuit, faces Meng Yi Chen, a Chinese competitor, in the opening round of the ITF W15 Tianjin 3 tournament scheduled for 20 August 2026. The W15 classification denotes a low-tier ITF event with modest prize money and ranking points, typically attracting developing professionals and players rebuilding from injury or ranking slumps. Kim has competed sporadically on the ITF circuit over recent seasons, whilst Chen has maintained a steadier presence in Chinese domestic and regional tournaments.
The 0% implied probability reflects either missing or severely outdated information in the market's pricing mechanism. At this tier of professional tennis, matches rarely fail to occur unless a player withdraws due to injury or visa complications in the days immediately before competition. Historical patterns across ITF W15 events show cancellation rates below 5%, with most matches proceeding as scheduled even when one player enters as a clear underdog. The settlement window extends to 27 August, providing a seven-day buffer beyond the scheduled date.
Traders should monitor ITF tournament draws and entry lists as the event approaches, typically released 10–14 days prior. Withdrawal announcements from either player would be the primary catalyst affecting market resolution. Recent ITF results for both competitors remain difficult to verify through mainstream sports reporting, making real-time form assessment challenging. Any announcement of scheduling conflicts or player withdrawals from the Tianjin organisers would materially alter the match's likelihood of proceeding.
Methodology
Sports-specific comparison page for ITF W15 Tianjin 3 Women: Dabin Kim vs Meng Yi Chen. 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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