Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via توقعات كورة) Pick polygram.ink (preferred broker) |
66% | 34% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
66% | 34% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 34°C | 66% |
| 33°C | 29% |
| 35°C | 11% |
| 28°C or below | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 36°C | 0% |
| 37°C | 0% |
| 38°C or higher | 0% |
Market context
Shanghai's weather on 28 July 2026 will be measured against historical summer patterns in the Yangtze River Delta region, where peak temperatures during late July typically range between 32°C and 38°C. The city experiences its most intense heat during the summer monsoon season, with daily highs frequently exceeding 35°C in mid-to-late July. The 0% crowd probability suggests traders are either uncertain about available temperature ranges or treating this as an outlier scenario rather than a genuine forecast exercise.
Historical Shanghai meteorological data shows that temperatures above 40°C occur rarely but not unprecedentedly during July heatwaves. The city recorded 40.9°C in July 2022 and has experienced multiple days above 38°C in recent summers. The current probability distribution may reflect either missing range options at the extreme end or genuine scepticism about whether conditions will produce record-breaking heat. Comparable late-July periods typically see highs between 34°C and 37°C under normal monsoon conditions.
Traders monitoring this market should track seasonal weather pattern forecasts released in early July 2026, particularly any alerts from China's Meteorological Administration regarding heatwave conditions. El Niño or La Niña patterns established by mid-2026 will influence regional temperature anomalies. The settlement relies on Wunderground's Shanghai Pudong International Airport Station data, which provides the most reliable urban temperature record for the city. Any significant atmospheric systems developing in late July—tropical cyclones, pressure systems, or unusual wind patterns—could shift outcomes substantially from seasonal norms.
Methodology
Football-specific comparison page for توقع: Highest temperature in Shanghai on July 28?. 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.
- 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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