Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Champions League Prediction) Pick polygram.ink (preferred broker) |
51% | 49% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
51% | 49% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 27°C | 51% |
| 28°C | 43% |
| 29°C | 6% |
| 23°C or below | 0% |
| 24°C | 0% |
| 25°C | 0% |
| 26°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C or higher | 0% |
Market context
The underlying event is the daily high temperature recorded at Shanghai Pudong International Airport on 29 June 2026, a date falling squarely within the city’s hot, humid, and rainy summer season. Current crowd-implied probability of 0% for any specific temperature range suggests the market may be mispricing the likelihood of extreme heat, as historical data confirms June highs regularly reach 30–35°C on sunny days, with averages around 29°C.
Historical patterns frame this probability sharply: on most sunny days in June, highs range from 30 to 35°C (86–95°F), while cloudy or rainy days typically see 25–30°C (77–86°F). With a 25% risk of thunderstorms forecast for 29 June [5], the market should account for the possibility of a sudden heat spike if skies clear, as recent years show June highs increasing by 7°F across the month, rarely falling below 26°C or exceeding 35°C [2].
Traders must monitor the Wunderground settlement source for real-time updates on cloud cover and precipitation timing, as a break in the rain could trigger a rapid temperature rise. The 14-day forecast indicates light rain and 24°C for Monday 29, but a shift to sunny conditions could push highs toward 35°C, a scenario not reflected in the current 0% probability [5]. No official weather agency announcements are pending, but local meteorological bulletins from the National Weather Service [4] may provide critical dependency data on storm progression.
Methodology
Football-specific comparison page for Highest temperature in Shanghai on June 29?. 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.
- 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.
- 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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