Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Mundial 2026 Grupos) Pick polygram.ink (preferred broker) |
72% | 28% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
72% | 28% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 28°C | 72% |
| 29°C | 19% |
| 30°C | 9% |
| 31°C | 2% |
| 32°C | 1% |
| 25°C or below | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C or higher | 0% |
Market context
Hong Kong faces its peak summer heatwave window as July 17, 2026, arrives, with the Hong Kong Observatory set to record the day’s absolute maximum temperature in degrees Celsius. The market currently assigns zero probability to any outcome, reflecting either a data gap or an early settlement assumption before official figures are published. Historical July maxima in Hong Kong typically range between 31°C and 35°C, with extreme days occasionally reaching 36°C or higher under strong subtropical ridge conditions and minimal cloud cover.
Recent climate patterns show Hong Kong experiencing more frequent high-temperature spells due to intensified urban heat trapping and warmer sea surface temperatures in the Pacific. Comparable cases from July 2023 and 2024 saw peak temperatures of 34.8°C and 35.2°C respectively, both recorded under similar atmospheric setups involving low wind speeds and high humidity. These precedents suggest that a 0% YES probability is inconsistent with typical July climatology unless the market is misframed or awaiting final data validation.
Traders should monitor the Hong Kong Observatory’s Daily Extract release, expected shortly after 12:00 UTC on July 17, for the official “Absolute Daily Max” figure. No external news catalysts are expected, as temperature resolution depends solely on the Observatory’s finalized dataset. A delay in publication or preliminary discrepancies could temporarily sustain the zero probability reading, but once the Daily Extract is confirmed, the market will resolve to the correct temperature range bracket.
Methodology
Football-specific comparison page for Pronóstico: Highest temperature in Hong Kong 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
- 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.
- 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.
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