Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via World Cup 2026 Favorites) Pick polygram.ink (preferred broker) |
96% | 4% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
96% | 4% | 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 |
|---|---|
| 35°C | 96% |
| 36°C | 5% |
| 37°C | 1% |
| 34°C or below | 0% |
| 38°C | 0% |
| 39°C | 0% |
| 40°C | 0% |
| 41°C | 0% |
| 42°C | 0% |
| 43°C | 0% |
| 44°C or higher | 0% |
Market context
Milan’s highest temperature for 31 July will be set by the peak reading at Malpensa Airport, and the market is effectively a call on whether the day gets into the low or mid-30s Celsius rather than a routine summer maximum. Seasonal guides and monthly climate data put late July in Milan around 30-31°C for daytime highs, with some forecasts nudging 80-85°F, or roughly 27-29°C, which is below the levels usually needed to make the upper temperature ranges look safe.[1][3][9][15][20]
The recent baseline argues for caution against a very hot outcome, even though Milan can spike hard in extreme setups. Reuters and CBS both reported Milan’s exceptional 2023 heatwave, when the city recorded its hottest day since 1763, showing that outlier heat events can drive temperatures far beyond normal July averages.[10][17] Against that backdrop, the current 0% yes implied probability suggests the market is pricing in a much cooler finish or a resolution range that is difficult to reach without a sustained hot spell.
The key catalysts are the final Wunderground observation at Malpensa before the settlement cut-off and any late-day convective activity, cloud cover or sea-breeze moderation that could cap the maximum reading. Traders should watch for updated Milan forecasts and any heat advisories from local weather services, because the market resolves on the single highest recorded temperature for the day, not the average or the afternoon forecast.[11][19]
Methodology
Football-specific comparison page for Highest temperature in Milan on July 31?. 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.
- 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.
- Can I import form data and lineups?
- This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.
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