Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Mundial 2026 Grupos) Pick polygram.ink (preferred broker) |
46% | 54% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
46% | 54% | 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 |
|---|---|
| 34°C | 46% |
| 33°C | 39% |
| 35°C | 9% |
| 32°C | 5% |
| 36°C | 2% |
| 28°C or below | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 37°C | 0% |
| 38°C or higher | 0% |
Market context
Shanghai’s high on 7 August will be measured at Pudong Airport, not downtown, and the key question is whether the day tops out in the mid-30s or drifts higher under the current heat pattern. Recent forecasts point to a hot but not extreme single-day range: AccuWeather shows Shanghai around 32–33°C for early August, while other services put 7 August near 35°C with showers or thunderstorms possible.[1][3][14]
The market’s 0% YES pricing looks most like a sceptical read on an exact-or-band outcome rather than a view that Shanghai will be cool. Historical August climate in Shanghai is firmly hot and humid, with typical highs around 31–32°C and occasional spikes much higher; one source notes that August maxima can reach 38–40°C in some years, and another cites a 2025 peak of 39°C on 24 August.[6][15] That matters because a single hot afternoon can lift the day’s official maximum even if cloud and rain arrive later.
What traders should watch is whether the current heatwave persists through the airport observation window and whether thunderstorms stay local enough to miss Pudong. A Shanghai weather report says the city is under an orange heat alert, with temperatures forecast at 35–38°C until 7 August and only a chance of isolated afternoon thunderstorms.[7] If cloud cover, rain, or a sea-breeze effect trims the airport’s peak, the result can land one bracket lower than city-centre forecasts suggest; if the heat dome holds, the upper 30s remain plausible.[2][7]
Methodology
Football-specific comparison page for Pronóstico: Highest temperature in Shanghai on August 7?. 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.
- 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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