Pronóstico: Highest temperature in Tokyo on July 9?

Platform comparison

Market context

Tokyo’s July heat is already breaking records, with a station 85km northwest of the city hitting 40.2°C this Saturday, signalling an intense summer onset that dwarfs the current 0% market probability for a 29°C peak on 9 July[6]. Historical data from mid-to-late July consistently shows temperatures soaring between 36°C and 40°C across Tokyo and Osaka, often accompanied by humidity exceeding 95%, making a 29°C high statistically implausible for this date[3]. The Japan Meteorological Agency’s recent confirmation of a 41.2°C record in Tamba city further underscores that the atmosphere is primed for extreme warmth, not the mild conditions implied by the current pricing[8][10].

Traders must monitor the official daily high released by Wunderground for Tokyo Haneda Airport Station at 12:00 UTC on 9 July, as this single metric determines the resolution[2]. Short-range ensemble forecasts currently point strongly toward a 30°C maximum, with the Polymarket frontrunner assigning a 97% probability to that outcome, directly contradicting the 0% implied chance for 29°C[1]. Any sudden shift in cloud cover or precipitation could alter the peak, but given the current trajectory of record-breaking heat, the dependency remains on whether the official observation aligns with the 30°C forecast or exceeds it[1]. The market’s $20.5K volume indicates active positioning around this higher temperature band, suggesting the 0% probability for 29°C is a rational reflection of the prevailing heatwave[7].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Pronóstico: Highest temperature in Tokyo on July 9?. 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.

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.

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.