Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Tax 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 |
|---|---|
| Completed Match | 100% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Set 2 Winner | 100% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Total Sets: O/U 2.5 | 100% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Set 1 O/U 8.5 | 100% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Set 2 O/U 8.5 | 100% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Match O/U 21.5 | 100% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Set 1 O/U 9.5 | 100% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Set 2 O/U 9.5 | 100% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Match O/U 22.5 | 100% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Set 1 O/U 10.5 | 100% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Set 2 O/U 10.5 | 100% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Match O/U 23.5 | 100% |
| National Bank Open: Maya Joint vs Liudmila Samsonova | 0% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Set 1 Winner | 0% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Set Handicap +/-1.5 | 0% |
| National Bank Open: Maya Joint vs Liudmila Samsonova Set Handicap +/-1.5 | 0% |
Market context
Maya Joint’s third-round meeting with Liudmila Samsonova at the National Bank Open is a straightforward hard-court match-up, and the market’s 0% YES price signals that the contract is already effectively treating a Joint advance as highly unlikely. Samsonova is the higher-ranked player and the consensus pre-match favourite across bookmakers, with most pricing placing her around the 1.25–1.42 range, while Joint has been offered at roughly 2.85–3.70.[1][5][6][20] That gap is consistent with the wider tournament framing: Samsonova has the stronger hard-court profile and a prior head-to-head win over Joint at Wimbledon, which is a useful comparator even though the surfaces differ.[1]
Comparable markets on tennis in this event have tended to move decisively once the draw and match status are confirmed, which matters here because the contract resolves on advancement rather than just appearance. If the match is completed normally, the winner resolves the market; if it is not played, ends tied, or is delayed more than seven days from the scheduled date without a winner, it settles 50-50 under the contract terms. For a trader, the main regulatory and access angle is that a Germany-based user faces potential GlüStV restrictions on gambling-like products, while US participants should note the CFTC’s broad reach over event contracts can affect platform access depending on jurisdiction and product structure; “no-KYC up to $1,500” means a user may be able to trade without full identity verification only until cumulative activity crosses that threshold, after which KYC is required. The practical catalyst set is narrow: any official schedule change, court assignment, walkover notice, or late withdrawal from Toronto matters more than broader form indicators, because the settlement depends on whether the match is actually played and completed.
Methodology
This overview of National Bank Open: Maya Joint vs Liudmila Samsonova reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
UK Frequently Asked Questions
- Do I need to KYC for Polymarket Tax UK?
- Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.
- Is Polymarket regulated by the UKGC?
- No. Polymarket is not licensed by the UK Gambling Commission (UKGC). It is a decentralised prediction market operated under US regulation. UK traders can use it but do not benefit from UKGC dispute resolution or player protection requirements.
- What are the HMRC tax rules on Polymarket profits for UK traders?
- Polymarket profits are treated as cryptocurrency disposal events by HMRC. Each USDC settlement is a taxable event subject to Capital Gains Tax (CGT). For 2026/27, the CGT rate is 18% (basic rate) or 24% (higher rate). The annual CGT exemption is £3,000. Report via HMRC Self Assessment if your total crypto gains exceed £3,000 or proceeds exceed £50,000.
- Does Polymarket KYC apply to UK users?
- Yes. Polymarket requires KYC (Know Your Customer) verification for all users, including UK residents. You must provide a government-issued photo ID and a selfie. The process typically takes 5–10 minutes via their ID verification provider.
- What is the legal difference between Polymarket and Betfair Exchange for UK traders?
- Betfair Exchange is UKGC-licensed, meaning UK consumer protections apply and winnings are typically tax-free. Polymarket is not UKGC-licensed — it operates under decentralised blockchain rules. Profits from Polymarket are subject to HMRC CGT as crypto disposals. Choose based on your regulatory preference and tax situation.
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