Pronóstico: Highest temperature in Shanghai on July 17?

Platform comparison

Market context

Shanghai is currently experiencing overcast conditions with a temperature of 33°C at Pudong International Airport, yet the market assigns zero probability to any specific high-temperature range for 17 July 2026. This current 0% YES probability appears contradictory given that July in Shanghai is historically hot, muggy, and sunny, with peak heat often requiring extreme precautions against heatstroke [2]. The settlement relies on Wunderground data from the Pudong station, and the complete lack of implied probability suggests a potential data error or a misunderstanding of the market’s binary structure rather than a genuine forecast of impossible temperatures.

Historical July weather in Shanghai consistently features high temperatures that frequently exceed 35°C, making the current 0% probability statistically anomalous when compared to typical seasonal patterns [2]. Traders should scrutinise whether the market resolution source has experienced a temporary outage or if the 0% figure reflects a technical glitch rather than a rational assessment of the weather. The primary catalyst to watch is the live Wunderground feed for the Pudong station, as any deviation from the expected summer heat curve would immediately invalidate the zero-probability stance.

No recent news announcements or schedule changes affect this weather event, but the dependency on real-time meteorological data means the probability must shift as soon as the day’s peak temperature is recorded. Given the current overcast conditions and 89% humidity at 7 AM UTC, the day’s maximum could still rise significantly if cloud cover clears, a variable that the current market pricing fails to account for [1]. Traders monitoring the live feed should expect a rapid correction in probability once the afternoon peak approaches.

Sources: 1 · 2

Methodology

Football-specific comparison page for Pronóstico: Highest temperature in Shanghai on July 17?. 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.

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.