Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) 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 |
|---|---|
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu | 100% |
| Completed Match | 100% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Set 2 O/U 8.5 | 100% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Set 1 Winner | 100% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Set 2 Winner | 100% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Set Handicap +/-1.5 | 100% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Set 2 O/U 9.5 | 100% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Match O/U 21.5 | 0% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Total Sets: O/U 2.5 | 0% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Set 1 O/U 8.5 | 0% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Match O/U 22.5 | 0% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Set 1 O/U 9.5 | 0% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Set 2 O/U 10.5 | 0% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Match O/U 23.5 | 0% |
| Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu Set 1 O/U 10.5 | 0% |
Market context
The Cincinnati Open qualification match between Xiyu Wang and Bianca Andreescu is scheduled for 11 August 2026 at 4:30PM ET. The 100% implied probability reflects near-certainty that this first-round qualifying encounter will proceed as scheduled, though the settlement window extends to 18 August to account for potential delays or rescheduling within the standard tournament window.
Wang, ranked outside the top 100, typically competes in qualifying draws at tier-one events. Andreescu, a former world number four with a 2019 US Open title, has spent recent seasons managing injuries and rebuilding ranking points through lower-tier tournaments and qualifying rounds. Historical precedent suggests matches between a rising qualifier and a former top-five player in this context carry execution risk—Andreescu's injury history has occasionally forced withdrawals or incomplete matches, though she has maintained reasonable participation rates in 2025-2026. The 100% probability likely reflects confidence that both players have committed to the draw and neither has reported recent injury concerns as of the last 48 hours.
Traders should monitor Cincinnati's official draw confirmations and any late injury announcements from either player's camp through 10 August. Weather disruptions are possible given Cincinnati's August schedule, though the tournament typically accommodates delays within the seven-day resolution window. Andreescu's recent match frequency and any statements regarding fitness will be the primary catalyst affecting settlement certainty.
Methodology
We track Cincinnati Open, Qualification: Xiyu Wang vs Bianca Andreescu 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
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.
UK Frequently Asked Questions
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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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