Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
47% | 53% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
47% | 53% | 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 | 47% |
| 33°C | 42% |
| 35°C | 10% |
| 28°C or below | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 36°C | 0% |
| 37°C | 0% |
| 38°C or higher | 0% |
Market context
Shanghai’s reading at Pudong is usually determined by a fairly tight summer distribution, with August highs typically clustering around the low 30s Celsius and average highs near 32–33°C. Forecast services for this week point to a hot start to August, with highs around 33–35°C and some models even pushing towards 37°C, which keeps a sub-40°C outcome the most natural reading for the market. [5][6][7][8][18]
The current **0% YES** price is consistent with how often Shanghai’s hottest-day readings stay well below extreme thresholds, even in the peak of summer. August is the city’s hottest month, but climatology still centres on roughly 32°C daytime highs, and the airport station is not a location that usually posts the sort of exceptional inland heat that would lift the day into the highest bands. [5][10][6]
For traders, the key catalysts are the latest short-range forecasts, any shift in humidity or rainfall chances, and whether the heat peaks before convection or cloud cover develops later in the day. The resolution source is the Pudong airport station on Wunderground, so the important question is not just the afternoon forecast but the day’s recorded maximum there; if the hot spell is delayed, capped by showers, or trimmed by sea-breeze influence, the top temperature can stay closer to the mid-30s Celsius than the upper bands. [19][2][7][4]
Methodology
Sports-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 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
- 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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