Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
88% | 12% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
88% | 12% | 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 |
|---|---|
| 34°C | 88% |
| 35°C or higher | 19% |
| 25°C or below | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
Market context
Beijing is set to face blistering heat on 5 July 2026, with the Beijing Capital International Airport Station expected to record a peak temperature that will determine the outcome of a prediction market. Historical data shows that July is Beijing’s hottest month, averaging a high of 32.4°C, while the city’s record for 5 July specifically hit 42.1°C in 2010[3]. Recent years have also seen extreme heatwaves, with temperatures soaring past 41°C in June 2023, marking the second-highest reading in the city’s history[2]. These comparable cases suggest that a 0% probability for any outcome above 30°C is inconsistent with both climatology and recent weather patterns[5][6].
Traders should monitor official weather bulletins from the Beijing Meteorological Bureau and real-time updates from Wunderground, the designated resolution source for this market[2]. Key catalysts include announcements of heatwave alerts, scheduled rainfall forecasts that could moderate temperatures, and any shifts in regional wind patterns that influence heat accumulation. Given China’s recent record for the hottest July month in its history, with average temperatures eclipsing previous highs, the likelihood of extreme heat on 5 July remains elevated[7]. Continuous tracking of these dependencies will clarify whether the market’s current pricing reflects a genuine anomaly or a misjudgement of seasonal trends.
Methodology
Sports-specific comparison page for Highest temperature in Beijing on July 5?. 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 or Manifold.
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.
- 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.
Trade Highest temperature in Beijing on July 5? on March Madness Predictions
Live order book, 0% fees, USDC settlement in seconds.
Open live market →