Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Mundial 2026 Grupos) Pick polygram.ink (preferred broker) |
89% | 11% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
89% | 11% | 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 |
|---|---|
| 30°C | 89% |
| 31°C | 10% |
| 32°C | 1% |
| 25°C or below | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C or higher | 0% |
Market context
Hong Kong's weather on 18 July 2026 will be measured against historical July temperatures recorded by the Hong Kong Observatory, with the highest daily maximum in Celsius determining the settlement range. July is consistently Hong Kong's hottest month, with mean daily maxima typically between 31–33°C, though individual days frequently exceed 34°C during the peak summer season.
The 0% crowd probability reflects uncertainty around which specific temperature band will be recorded rather than doubt that a reading will occur. Historical data from the Observatory shows July daily maxima have ranged from 29.3°C to 36.3°C over recent decades. The settlement mechanism depends entirely on the Observatory's "Absolute Daily Max" figure published in the Daily Extract for that date; no alternative sources or adjustments apply. Traders should monitor the Observatory's seasonal forecasts and any anomalous weather patterns emerging in early July 2026, as tropical cyclone activity or unusual atmospheric conditions could shift temperatures outside typical ranges.
The market cannot resolve until the Observatory publishes finalised data, which typically occurs within days of the measurement date. Traders should verify the exact decimal precision required for settlement, as the Observatory records temperatures to one decimal place. Current crowd positioning at 0% suggests either extreme confidence in a particular temperature band or insufficient liquidity to establish meaningful odds across the available ranges.
Methodology
Football-specific comparison page for Pronóstico: Highest temperature in Hong Kong on July 18?. 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.
- 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.
- 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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