Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Mundial 2026 Grupos) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| 30°C or higher | 100% |
| 20°C or below | 0% |
| 21°C | 0% |
| 22°C | 0% |
| 23°C | 0% |
| 24°C | 0% |
| 25°C | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 29°C | 0% |
Market context
Shanghai is entering its peak summer heatwave, with the city consistently recording daily highs well above 30°C as July begins. The prediction market currently assigns a 0% probability to temperatures failing to reach the 28°C threshold, reflecting the overwhelming consensus that extreme warmth is the norm for this period. Historical data confirms that July is the hottest month in Shanghai, with average highs reaching 87°F (30.5°C) and frequent spikes to 35°C (95°F) during sunny conditions[5][7]. Past records from the Shanghai Pudong International Airport Station show that summer highs regularly exceed 30°C, making a sub-28°C day an exceptionally rare anomaly rather than a plausible outcome[7].
Traders should monitor real-time updates from Wunderground for the Shanghai Pudong station, as the market resolves based on the highest temperature recorded at any time on 2 July 2026[6]. While the Hongqiao Airport station recorded a high of 29°C on 2 July in recent years, the coastal location of Pudong may slightly moderate extremes, though not enough to breach the 28°C floor[3]. No significant weather disruptions, such as heavy fog or monsoon rains, are forecast to interrupt the heatwave, and the prevailing east-southeasterly winds at 6 mph are unlikely to bring cooling relief[3]. The settlement window closes at 12:00 UTC on 2 July, so the final reading will be locked in by midday, leaving little room for late-day fluctuations to alter the outcome[1].
Methodology
Football-specific comparison page for Pronóstico: Highest temperature in Shanghai on July 2?. 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.
- 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.
- 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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