Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) 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 |
|---|---|
| Completed Match | 100% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Set 1 O/U 8.5 | 100% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Match O/U 21.5 | 100% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Set 2 O/U 8.5 | 100% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Set 1 O/U 9.5 | 100% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Match O/U 22.5 | 100% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Set Handicap +/-1.5 | 100% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Set 2 O/U 9.5 | 100% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Set 1 O/U 10.5 | 100% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Match O/U 23.5 | 100% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Set 2 O/U 10.5 | 100% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend | 0% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Set 2 Winner | 0% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Set 1 Winner | 0% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Total Sets: O/U 2.5 | 0% |
| National Bank Open: Marie Bouzkova vs Taylor Townsend Set Handicap +/-1.5 | 0% |
Market context
Polymarket is pricing Marie Bouzkova vs Taylor Townsend at **8% YES** on the Bouzkova side, so the contract is treating a Bouzkova advance as a low-probability outcome and a Townsend advance as the market’s base case. Because settlement is in USDC on Polygon through conditional tokens, the key practical point is not just who wins on court, but whether the match is completed within the market’s timetable; if it is not played, ends level, or drifts beyond the seven-day delay rule without a winner, the contract resolves 50-50 rather than to either player.[1][2]
That 8% looks notably lower than the tennis history between the pair would suggest. Bouzkova leads the head-to-head 2-1 in professional meetings, but Townsend won their most recent clash in Rome in 2026, and Bouzkova’s 2026 singles record has been weaker than Townsend’s by the season-to-date figures in the available match databases.[3][4][5] On a comparable-read basis, the market is therefore not pricing pure head-to-head; it is also folding in current form, surface expectations and the possibility that recent results, rather than long-run match-up history, matter more on the day.[3][5][8]
For traders, the main catalysts are the event schedule, any official order-of-play changes, and whether the match starts on the listed day, because those details determine whether the contract settles on a winner or falls into the fallback 50-50 outcome. The latest live listings show the match as a National Bank Open women’s singles meeting, and recent result feeds confirm that Townsend already beat Bouzkova 6-3, 7-5 at Rome this season, which is the most relevant recent comparator for assessing whether today’s price understates or overstates Bouzkova’s chance.[1][9][12]
Methodology
We track National Bank Open: Marie Bouzkova vs Taylor Townsend 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 PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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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