Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You | 100% |
| Completed Match | 100% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Set 1 Winner | 100% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Set 2 Winner | 100% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Set 1 O/U 8.5 | 100% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Set Handicap +/-1.5 | 100% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Game Spread +/-6.5 | 100% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Total Sets: O/U 2.5 | 0% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Set 2 O/U 8.5 | 0% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Match O/U 21.5 | 0% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Match O/U 22.5 | 0% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Set 1 O/U 9.5 | 0% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Set 2 O/U 9.5 | 0% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Set Handicap +/-1.5 | 0% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Match O/U 23.5 | 0% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Set 1 O/U 10.5 | 0% |
| US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You Set 2 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to us open, qualification wta: qinwen zheng vs xiaodi you. This market refers to the tennis match between Qinwen Zheng and Xiaodi You in the US Open, Qualification WTA, originally scheduled for August 24, 2026 at 11:00AM ET. This market will resolve to 'Qinw…
Methodology
We track US Open, Qualification WTA: Qinwen Zheng vs Xiaodi You across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
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.
UK Frequently Asked Questions
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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.
- 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.
- What are the best prediction markets for UK traders in 2026?
- For UKGC-regulated markets: Betfair Exchange (sports, politics) and Smarkets (sports, politics, lower commission than Betfair). For broader global event prediction: Polymarket (deepest liquidity, 0% fee, USDC settlement). For US-regulated option: Kalshi (USD, limited UK payment options). Most serious UK traders use a combination of Betfair for regulated sports and Polymarket for broader markets.
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