Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Review UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson | 100% |
| Completed Match | 100% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Match O/U 21.5 | 100% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Set 2 Winner | 100% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Set 2 O/U 8.5 | 100% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Set 1 Winner | 100% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Set Handicap +/-1.5 | 100% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Set 1 O/U 8.5 | 100% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Set 2 O/U 9.5 | 100% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Set 1 O/U 9.5 | 100% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Set 2 O/U 10.5 | 100% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Total Sets: O/U 2.5 | 0% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Match O/U 22.5 | 0% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Set Handicap +/-1.5 | 0% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Match O/U 23.5 | 0% |
| Warsaw: Carol Young Suh Lee vs Gabriela Knutson Set 1 O/U 10.5 | 0% |
Market context
Carol Young Suh Lee and Gabriela Knutson are scheduled to meet in Warsaw on hard court, and the market is currently pricing Lee as a near-certainty. That 100% crowd-implied probability is much more extreme than the underlying match profile: the pair have already played competitively before, with Lee taking the recent Warsaw meeting 6–4, 7–5 and the earlier Caldas da Rainha match going to Knutson in three sets.[2][19][4]
For traders using bots or conditional orders, the cleanest read is that the market is likely embedding either a live-score update, a confirmed withdrawal, or stale pricing rather than a simple pre-match handicap. On paper, Lee has the stronger ranking and 2026 record, sitting around WTA 165 versus Knutson’s 219, while also showing a better year-to-date win rate in the available head-to-head data.[2][3] That sort of gap can justify favourite status, but not an unconditional 100% unless the exchange has already seen a decisive development.[3][14]
The main catalysts are operational rather than tactical: confirmed start time, court assignment, any late medical timeout or withdrawal news, and whether the match is actually underway before the settlement window closes on 15 August. Tennis feeds in Warsaw are already showing in-play state and score progression, which means an unmatched or suspended feed can move a programmatic position sharply even before the result is final.[10][15] In practice, a power user would want alerts on official draw updates and live-scoring status, because if the match is delayed beyond the seven-day rule or never completed, the market can still settle to 50–50 despite the pre-match headline.[10][15]
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 Polymarket Review UK. 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%.
Trade Warsaw: Carol Young Suh Lee vs Gabriela Knutson on Polymarket Review UK
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