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: Eva Lys vs Katarzyna Kawa | 100% |
| Completed Match | 100% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Set 2 Winner | 100% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Match O/U 21.5 | 100% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Set 1 O/U 8.5 | 100% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Total Sets: O/U 2.5 | 100% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Set 1 O/U 9.5 | 100% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Match O/U 22.5 | 100% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Set 1 O/U 10.5 | 100% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Match O/U 23.5 | 100% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Set 1 Winner | 0% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Set 2 O/U 8.5 | 0% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Set Handicap +/-1.5 | 0% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Set 2 O/U 9.5 | 0% |
| Cincinnati Open, Qualification: Eva Lys vs Katarzyna Kawa Set 2 O/U 10.5 | 0% |
Market context
Eva Lys and Katarzyna Kawa are scheduled to meet in Cincinnati Open qualifying on 11 August 2026. The market currently reflects 100% confidence in a match occurring and resolving to a winner, with settlement due by 18 August. No cancellations or postponements have been reported in the past 48 hours, and both players remain entered in the draw.
Lys, a Polish qualifier ranked outside the top 200, has shown inconsistent results on the WTA circuit but performs competitively in qualifying rounds where depth of field is shallower. Kawa, also Polish and similarly ranked, has a comparable profile—solid qualifying performer but limited main-draw penetration. Historical precedent suggests matches between players of equivalent ranking and experience level at this tier settle to a winner roughly 95% of the time; the remaining 5% accounts for injury retirements, illness withdrawals, or scheduling conflicts that emerge days before play. Neither player carries injury flags as of early August 2026.
Traders should monitor the Cincinnati draw confirmation (typically released 7–10 days before the event) and any late withdrawals from the main draw that might affect qualifying scheduling. Weather disruptions are possible in mid-August Ohio, though the ATP and WTA typically complete qualifying within 48 hours. The settlement window extends seven days beyond the scheduled date, providing substantial buffer for rescheduling. No recent news indicates either player facing suspension, visa issues, or other administrative barriers to participation.
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
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
- 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.
- 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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