Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
85% | 15% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
85% | 15% | 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 |
|---|---|
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 1 O/U 8.5 | 85% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 2 Winner | 65% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 1 O/U 10.5 | 61% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante | 56% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 1 Winner | 54% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Match O/U 22.5 | 54% |
| Completed Match | 50% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 2 O/U 8.5 | 50% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Match O/U 21.5 | 50% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 2 O/U 9.5 | 50% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 2 O/U 10.5 | 50% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Match O/U 23.5 | 48% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Total Sets: O/U 2.5 | 42% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set Handicap +/-1.5 | 34% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 1 O/U 9.5 | 32% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set Handicap +/-1.5 | 26% |
Market context
Alexei Popyrin and Thiago Agustin Tirante are meeting in the National Bank Open third round on outdoor hard courts in Montreal, with no prior head-to-head record to lean on.[4][5] The market’s 56% implied chance for Popyrin sits close to the broader pre-match pricing, with Tennis.com projecting him at 54% and other pre-match previews also leaning his way.[2][13][14] That makes this a near-coinflip profile rather than a strong favourite spot, especially in a first meeting where small edges in serving form and returning efficiency can decide the match.[5][15]
The main historical frame is the contrast between established tour-level hard-court experience and a player arriving with momentum from a deep run in the event. Tirante has been described as coming in after upsetting Taylor Fritz in the previous round, while Popyrin has also strung together consecutive wins to reach this stage.[6][15] The match therefore reads less like a mismatch and more like a form-versus-resumé case, with the current price reflecting that both players have recent evidence of competitiveness on this surface.[4][6]
For traders, the key catalysts are whether the match remains on schedule and whether either side is carrying a hidden physical issue after the compressed turnaround. Live listings show the fixture has already shifted in timing across scheduling feeds, and both players were noted as having only two days’ rest, which can matter in a Masters 1000 setting.[6][10] Any late withdrawal, medical timeout history, or further rescheduling would be material because the market rules send a non-played or excessively delayed match to a 50-50 settlement.[1]
Methodology
Sports-specific comparison page for National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
UK Frequently Asked Questions
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- 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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