Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via احتمالات كأس العالم) Pick polygram.ink (preferred broker) |
65% | 35% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
65% | 35% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 34°C | 65% |
| 35°C | 34% |
| 36°C | 2% |
| 37°C | 1% |
| 29°C or below | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 38°C | 0% |
| 39°C or higher | 0% |
Market context
Shanghai is set up for another muggy August heat spell, with forecast highs clustered in the low 30s Celsius and some models pushing the city towards the mid-30s. AccuWeather’s August outlook has Shanghai’s daily highs ranging from about 82°F to 92°F, while other August guides put the month’s typical highs around 31–32°C and note that 3 August itself sits near 34–35°C in several forecasts.[1][6][8][11][18] For this market, the key is not the daily average but the *single highest* reading recorded at Shanghai Pudong International Airport Station before the settlement window closes.
That makes a 0% crowd price easy to understand only if traders are treating the market as practically impossible to exceed the forecast range, but comparable August climates in Shanghai have produced much hotter extremes. Travel guides cite a 39°C peak in August 2025, and one August reference lists 34.5°C for 3 August as a representative high, showing that the city can still spike well above its monthly mean when heat and humidity build under weak ventilation.[4][16] Official daily forecasts on 2 August also showed Shanghai at 29–37°C with cloudy conditions, which is consistent with a very warm start to the month even without a major heatwave.[5]
The main catalysts are late heatwave upgrades, typhoon-related air-mass changes, and whether any forecast verification pages at Wunderground show an updated station peak as the day progresses. Shanghai’s August pattern is typically hot and humid with frequent rain or thunderstorms, so the upper bound often depends on whether cloud cover and precipitation arrive early enough to cap the afternoon maximum.[2][4][6][9][11] Traders should watch for a revised high-temperature forecast at Pudong and any official city weather updates that signal a stronger-than-expected hot spell or, alternatively, earlier convective rain that would suppress the day’s ceiling.[5][17]
Methodology
Football-specific comparison page for توقع: Highest temperature in Shanghai on August 3?. 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.
- 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.
- 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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