Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Mundial 2026 Grupos) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| Completed Match | 100% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Set 2 Winner | 100% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Total Sets: O/U 2.5 | 100% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Set 1 O/U 8.5 | 100% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Match O/U 21.5 | 100% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Set 2 O/U 8.5 | 100% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Match O/U 22.5 | 100% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Set 2 O/U 9.5 | 100% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Match O/U 23.5 | 100% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Set 2 O/U 10.5 | 100% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi | 0% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Set 1 Winner | 0% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Set Handicap +/-1.5 | 0% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Set 1 O/U 9.5 | 0% |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi Set 1 O/U 10.5 | 0% |
Market context
Matteo Arnaldi, ranked 34th, faces Argentina’s Federico Agustin Gomez (No. 209) in the Round of 16 of the Plava Laguna Croatia Open on clay, with the Italian heavily favoured to advance. This is their first professional meeting, eliminating any head-to-head bias, but Arnaldi’s superior surface record and recent title win at the Cagliari Challenger on clay make him the clear statistical pick [1][5].
Historical precedents in ATP clay events show that when a top-40 player meets a qualifier ranked below 200 with no prior H2H, the higher-ranked player wins approximately 75–80% of matches, aligning closely with Arnaldi’s 77.8% implied win probability from betting odds [5]. The 0% crowd-implied probability for Gomez reflects this steep disparity, mirroring past Croatia Open second-round mismatches where lower-ranked players failed to break through against established clay specialists.
Traders should monitor Arnaldi’s post-Wimbledon fatigue, as he lost in the first round there after a tight four-setter, and watch for any late injury updates from the tournament’s official draw sheet [1]. Gomez’s momentum from three qualifying wins could be a short-term catalyst, but his 44.4% win rate over the last 12 months versus Arnaldi’s 59.3% in 2026 suggests limited upside unless Arnaldi shows signs of physical decline mid-match [6].
Methodology
Football-specific comparison page for Pronóstico: Croatia Open: Federico Agustin Gomez 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.
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