Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Champions League Prediction) Pick polygram.ink (preferred broker) |
55% | 45% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
55% | 45% | 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 |
|---|---|
| 32°C | 55% |
| 31°C | 43% |
| 33°C | 4% |
| 34°C | 1% |
| 25°C or below | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 35°C or higher | 0% |
Market context
Hong Kong is set to face peak summer conditions on 8 July 2026, with the Hong Kong Observatory forecasting a maximum of 31°C under partly cloudy to showery skies, aligning with the market’s leading 31°C outcome at 34.5% implied probability[1]. Historical data from July 2018 shows a mean maximum of 31.8°C, while the average high for July typically sits around 32°C, confirming that 31°C is a realistic and frequently observed threshold during this period[5][8]. The current 0% crowd-implied probability for a “YES” outcome likely reflects a misinterpretation of the market’s binary framing rather than actual climatic impossibility, as temperatures in this range are well within normal seasonal expectations[1].
Traders should monitor the finalisation of the “Daily Extract” data from the Hong Kong Observatory, which will publish the official “Absolute Daily Max (deg. C)” once the settlement window closes on 2026-07-08T12:00:00Z[1]. The seasonal forecast for July–September 2026 indicates normal to above-normal temperatures, driven by current ENSO conditions and climate model guidance, suggesting no significant cooling anomalies are expected[3]. Any sudden shifts in weather patterns, such as intensified showery conditions or unexpected cloud cover, could lower the recorded maximum below 31°C, but current forecasts remain stable and point toward the predicted peak[1]. The key dependency is the timely release of the climatological data, which is the sole resolution source for this market[1].
Methodology
Football-specific comparison page for Highest temperature in Hong Kong on July 8?. 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
- 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.
- 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.
- 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.
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