Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via احتمالات كأس العالم) Pick polygram.ink (preferred broker) |
77% | 23% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
77% | 23% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Set 1 O/U 8.5 | 77% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi | 59% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Match O/U 21.5 | 57% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Set 1 Winner | 56% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Set 1 O/U 9.5 | 56% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Set 2 Winner | 55% |
| Completed Match | 50% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Set 2 O/U 8.5 | 50% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Match O/U 22.5 | 50% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Set 2 O/U 9.5 | 50% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Set 2 O/U 10.5 | 50% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Match O/U 23.5 | 45% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Total Sets: O/U 2.5 | 42% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Set Handicap +/-1.5 | 36% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Set 1 O/U 10.5 | 29% |
| National Bank Open: Fabian Marozsan vs Matteo Arnaldi Set Handicap +/-1.5 | 25% |
Market context
Fabian Marozsan meets Matteo Arnaldi in the National Bank Open with the market leaning Arnaldi at 56% on the current crowd line. That is broadly consistent with the only completed head-to-head, which Arnaldi won on clay in Geneva in May 2025 in straight sets, 6-3, 7-6(3).[1][8][10]
The historical frame still points to a modest edge for Arnaldi rather than a runaway position. Available head-to-head sources agree that Arnaldi has won the pair’s previous meetings, including the Geneva result and an earlier 2022 match, while Marozsan has yet to beat him in this matchup.[3][5][7] The first meeting data also suggest Arnaldi handled the pressure points better, converting one of six break chances and saving both break points he faced.[8][10] For traders, that makes a number in the mid-50s plausible rather than aggressive, especially if the court is quick enough to reward first-strike serving and clean holding.
The main live catalysts are simple: the official order of play, any late withdrawal or fitness note, and whether the match actually starts on schedule. The market terms matter because a cancelled match or one delayed beyond seven days would settle at 50-50, so schedule risk is not trivial in a tournament with weather and draw dependencies. If the pair are both confirmed in the draw and listed to play, the line will mostly move on injury news, warm-up reports, and whether either player has been protected or pushed through a long run earlier in the event.
Methodology
Football-specific comparison page for توقع: National Bank Open: Fabian Marozsan vs Matteo Arnaldi. 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 (US-focused) or Manifold (play-money).
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.
FAQ
- 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.
- What are live sports odds on Polymarket?
- Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.
- Which sports markets are available?
- Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
- How fast do sports winnings settle?
- Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.
Trade توقع: National Bank Open: Fabian Marozsan vs Matteo … on احتمالات كأس العالم
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