Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via World Cup 2026 Favorites) Pick polygram.ink (preferred broker) |
55% | 45% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
55% | 45% | 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 |
|---|---|
| 34°C | 55% |
| 33°C | 23% |
| 35°C | 18% |
| 36°C | 2% |
| 28°C or below | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 37°C | 0% |
| 38°C or higher | 0% |
Market context
Shanghai is set for a hot, humid early-August session, with the main trading question being whether the day’s peak at Pudong Airport lands in the low-30s Celsius or pushes into the mid-30s. Current forecasts cluster around highs of roughly 33–35°C, with some outlooks showing 33°C in the morning and 35°C in the afternoon, alongside high humidity and only limited wind relief.[2][5][16]
That puts the market in familiar Shanghai August territory rather than an extreme outlier. Long-run climate references place Shanghai’s August average high around 32–33°C to 35°C, with typical daytime temperatures in the low-to-mid 30s and occasional peaks near 38–40°C; one August 2025 comparison also showed a 39°C spike late in the month.[4][7][14] Against that backdrop, a 0% yes price looks more like a market judgement on the specific station and settlement mechanics than a view that heat is impossible.
The key catalyst is the local forecast evolution over the next 48 hours, especially whether any showers, cloud cover or sea-breeze influence cap the afternoon maximum at Pudong. Recent forecasts have already flagged cloud, brief showers and thunderstorms in Shanghai around 6–7 August, which matters because convective cloud can suppress the top temperature even on a very warm day.[13] Traders should also watch whether the airport station performs differently from city-centre forecasts, as coastal exposure, rainfall timing and midday sun all affect the recorded high used for settlement.
Methodology
Football-specific comparison page for 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
- 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.
- 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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