Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
57% | 43% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
57% | 43% | 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 |
|---|---|
| 27°C | 57% |
| 26°C | 28% |
| 28°C | 11% |
| 25°C | 1% |
| 29°C | 1% |
| 24°C or below | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C or higher | 0% |
Market context
Paris will experience peak summer heat on 27 July 2026, with the highest temperature at Le Bourget Airport Station determining the settlement outcome. This date falls within the climatological peak of the European summer season, when continental high-pressure systems typically dominate northern France and drive afternoon temperatures well above seasonal norms.
Historical records for late July in Paris show considerable year-to-year variation. The 30-year average high for this period sits around 25–26°C, but extremes are common. In July 2022, Paris recorded 42.2°C during an exceptional heatwave; conversely, cooler summers have seen peaks near 20°C. Le Bourget Airport, situated north-east of central Paris, tends to record slightly lower maxima than urban stations due to its semi-rural setting, though it remains representative of the broader Île-de-France region. The current 0% crowd probability suggests traders are either awaiting resolution or treating the market as inactive; historical volatility in July temperatures means all reasonable ranges merit consideration.
Traders should monitor European weather forecasts from mid-July onwards, particularly the position of the Atlantic jet stream and any blocking high-pressure systems. The UK Met Office and Météo-France typically issue reliable 10–14 day outlooks by late June. Any significant weather pattern shifts—such as Atlantic low-pressure systems bringing cooler, wetter conditions—would narrow the likely range downward. Conversely, establishment of a continental anticyclone would push expectations higher. Settlement depends entirely on Wunderground's recorded data from Le Bourget, making station reliability and data availability the final verification points.
Methodology
Sports-specific comparison page for Highest temperature in Paris on July 27?. 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.
FAQ
- 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.
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- 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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