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 |
|---|---|
| 33°C | 100% |
| 29°C or below | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 34°C | 0% |
| 35°C | 0% |
| 36°C | 0% |
| 37°C | 0% |
| 38°C | 0% |
| 39°C or higher | 0% |
Market context
Paris’s peak temperature for 4 August will be set by what happens at Paris-Le Bourget Airport before the settlement cut-off, so the market is really about the day’s maximum rather than the monthly average. For early August, the climate backdrop is usually warm: long-range sources put Paris’s August highs roughly in the mid-20s Celsius, with daily highs around 25–26°C and averages near 24–25°C, although some forecasts allow the day to run a little hotter.[1][2][11][13]
That makes 0% for YES look extreme against the seasonal baseline. Comparable August climatology shows Paris can exceed 30°C on warmer spells, with WeatherSpark noting that 4 August is typically among the warmest points of the year and that daily highs can rarely reach the high-20s or upper-80s Fahrenheit equivalents, while a separate Paris forecast for 4 August 2026 points to highs around 30–32°C after possible morning showers.[13][12] In other words, the market is priced as if a notably warm outcome is impossible, yet the historical and forecast context says a mid-to-high 20s reading is the more ordinary outcome and a 30°C-plus print is at least within the plausible range.[1][3][13]
The main trader catalysts are the short-range updates for Île-de-France, especially any revision to the expected morning showers and afternoon sunshine, because a clearer, sunnier evolution would support a higher peak, while cloud and rain would suppress it.[12][7] AccuWeather’s monthly outlook still shows a wide August range for Paris, with daily highs forecast between 71°F and 81°F, so late swings in the day’s forecast can matter even when the broader monthly profile looks stable.[1] Because the source is the airport station’s recorded maximum, not the city centre, any localised difference in cloud cover or convective rain near Le Bourget is the key dependency traders should watch.[12]
Methodology
Football-specific comparison page for Pronóstico: Highest temperature in Paris on August 4?. 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
- 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.
- 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.
- What's the difference between match odds and outright odds?
- Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.
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