Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Market UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Set 1 O/U 8.5 | 100% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Set 1 O/U 9.5 | 100% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Set Handicap +/-1.5 | 100% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Set 1 O/U 10.5 | 100% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti | 0% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Set 2 Winner | 0% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Set 1 Winner | 0% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Set Handicap +/-1.5 | 0% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Set 2 O/U 8.5 | 0% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Total Sets: O/U 2.5 | 0% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Match O/U 21.5 | 0% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Set 2 O/U 9.5 | 0% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Match O/U 22.5 | 0% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Set 2 O/U 10.5 | 0% |
| National Bank Open: Nicolas Mejia vs Lorenzo Musetti Match O/U 23.5 | 0% |
Market context
National Bank Open: Nicolas Mejia vs Lorenzo Musetti — current market-implied probability: 100%. This market refers to the tennis match between Nicolas Mejia and Lorenzo Musetti in the National Bank Open, originally scheduled for August 6, 2026 at 10:00AM ET. This market will resolve to 'Nicolas…
Methodology
This page reviews National Bank Open: Nicolas Mejia vs Lorenzo Musetti across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Market UK, which mirrors the Polymarket order book at 0% fees.
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 Prediction Market 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%.
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