Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via توقعات المونديال) Pick polygram.ink (preferred broker) |
95% | 5% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
95% | 5% | 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 |
|---|---|
| 37°C | 95% |
| 38°C | 3% |
| 39°C | 1% |
| 31°C or below | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C | 0% |
| 36°C | 0% |
| 40°C | 0% |
| 41°C or higher | 0% |
Market context
Shanghai’s late-July heat usually sits in the low-to-mid 30s Celsius, and the current forecasts lean close to that pattern. AccuWeather’s July outlook shows daily highs generally between 86°F and 100°F, while Weather.com’s 10-day forecast for Pudong points to a Sunday high near 95°F, with the Met Office also flagging 37°C for Shanghai and only limited rain risk in the evening. That puts a sub-35°C outcome in play, but still leaves enough upside for a mid-30s peak if cloud breaks and rainfall stay patchy.[1][12][14]
The historical frame is straightforward: July is Shanghai’s hottest and rainiest month, and the end of the month can still produce some of the clearest skies. WeatherSpark says 31 July is the clearest day of the month 41% of the time, which matters because clearer conditions increase the chance of a stronger daytime maximum. Other seasonal guides put July highs around 33°C to 34°C, so a low-30s print is the base case, but 36°C or higher is not out of line when the heat ridge is in place.[8][11][18][20]
For traders, the main catalysts are the hourly forecast updates and any change in thunderstorm timing, cloud cover, or sea-breeze strength around Pudong before the noon UTC settlement cut-off. BBC Weather currently shows Shanghai observations at 22°C with humid, breezy conditions, and the local forecast feeds still carry shower risk, so a morning overcast spell could cap the day’s peak even if the afternoon stays warm.[2][10][14] Chinese municipal forecasts have already shown Shanghai at 38°C in the broader city outlook, which is a reminder that the ceiling remains high if the hottest air reaches the airport station.[7]
Methodology
Football-specific comparison page for توقع: Highest temperature in Shanghai 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.
- 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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