Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) 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 |
|---|---|
| 29°C | 100% |
| 26°C or below | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C | 0% |
| 36°C or higher | 0% |
Market context
A powerful El Niño-driven heatwave is set to strike France in early July 2026, with meteorologists forecasting daytime highs of 35–38°C across Paris and northern regions, while feels-like temperatures climb even higher[3]. This extreme event, expected to persist for 7 to 10 days, positions the current 0% crowd-implied probability for lower temperature ranges as a likely mispricing, given that historical precedents show Paris routinely exceeding 30°C during such intense summer surges[3][4].
Historical data from the 2026 European heatwaves confirms that unofficial readings in France have reached 50°C, with Paris surpassing 40°C (104°F) on multiple recent occasions during record-breaking heat streaks[5][7]. The current market probability of 0% for lower ranges ignores the consistent pattern of Paris-Le Bourget Airport recording highs above 34°C during comparable early-July heat events, as seen in similar Polymarket outcomes where 34°C and 35°C are frontrunners[1][2].
Traders must monitor real-time updates from Meteo France, which has already issued red heat wave alerts for 54 departments, indicating high temperatures will persist around the clock[4]. Key catalysts include the timing of the heatwave peak, which forecasts suggest will hit between 12:00 and 4:00 p.m., and any sudden shifts in cloud cover or wind patterns that could moderate the extreme heat[3]. The settlement window ending 2026-07-05T12:00:00Z means the highest temperature recorded before noon will determine the outcome, making the morning peak critical[3].
Methodology
Sports-specific comparison page for Highest temperature in Paris on July 5?. 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
- 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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