Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via World Cup 2026 Favorites) Pick polygram.ink (preferred broker) |
82% | 18% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
82% | 18% | 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 |
|---|---|
| 33°C | 82% |
| 34°C | 19% |
| 35°C | 2% |
| 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 in late July sits firmly within the city's summer monsoon season, when daily highs routinely exceed 32°C and occasionally push toward 37–38°C during heat waves. The settlement window closes at midday on 28 July 2026, meaning only temperatures recorded up to that point will count toward resolution. Historical data from Shanghai Pudong International Airport—the official measurement station—shows that late-July highs have ranged from 29°C on cooler days to 37.5°C during particularly intense heat events, with the 30–35°C band representing typical outcomes for this period.
The 0% crowd probability suggests traders are either uncertain about the specific temperature brackets available or treating this as a straightforward weather forecast rather than a betting proposition. Shanghai's summer climate is remarkably consistent year-to-year; the city experiences high pressure systems and tropical moisture throughout July, creating predictable heat patterns. Wunderground's historical records for this station provide granular daily maxima, allowing precise settlement against recorded data rather than estimates.
Traders should monitor mid-July 2026 weather patterns and any emerging forecasts from China Meteorological Administration bulletins in the weeks preceding the settlement date. El Niño or La Niña conditions could shift regional pressure systems and influence whether late July 2026 tracks toward the cooler or warmer end of Shanghai's typical range. The specific temperature brackets offered in this market will determine whether the crowd's current indifference reflects genuine uncertainty or simply sparse liquidity.
Methodology
Football-specific comparison page for 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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