Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) 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: Coleman Wong vs Otto Virtanen | 100% |
| Completed Match | 100% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Set 2 O/U 8.5 | 100% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Set 1 Winner | 100% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Set 1 O/U 8.5 | 100% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Set 2 Winner | 100% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Match O/U 21.5 | 100% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Set 2 O/U 9.5 | 100% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Set 1 O/U 9.5 | 100% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Match O/U 22.5 | 100% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Set 2 O/U 10.5 | 100% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Match O/U 23.5 | 100% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Set 1 O/U 10.5 | 100% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Set Handicap +/-1.5 | 0% |
| Cincinnati Open, Qualification: Coleman Wong vs Otto Virtanen Total Sets: O/U 2.5 | 0% |
Market context
Coleman Wong and Otto Virtanen are scheduled to meet in the Cincinnati Open qualifying draw on 12 August 2026. The market is currently priced at 100% for Wong's advancement, reflecting either overwhelming consensus or a liquidity void. With settlement closing on 19 August, there is a seven-day buffer before the 50-50 tie-breaker triggers, giving the match reasonable time to complete barring extraordinary circumstances.
Historical context suggests qualifying matches at ATP 1000 events rarely produce upsets of sufficient magnitude to shift such extreme pricing. Wong, an American ranked outside the top 150, has competed in qualifying at major venues but lacks consistent breakthrough results. Virtanen, a Finnish player with similar ranking trajectory, represents a comparable tier opponent. When two players of equivalent standing meet in qualifying, the 100% reading typically reflects either incomplete market information or a genuine absence of traders willing to back the underdog at any price—a common pattern in lower-profile qualifying fixtures where liquidity clusters around one side.
The key catalyst is match scheduling confirmation and any late withdrawal announcements. Cincinnati's qualifying typically runs 10–12 August, with main draw play beginning 13 August, leaving minimal slack for rescheduling. Weather disruptions in Ohio during mid-August are possible but infrequent. Traders should monitor the ATP's official draw updates and any player injury reports in the 48 hours before the scheduled start. A withdrawal by either player would trigger the 50-50 resolution, whilst match completion within the window almost certainly settles the market based on the actual winner.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
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 Who Will Win. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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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