Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
40% | 60% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
40% | 60% | 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 | 40% |
| 29°C | 28% |
| 27°C | 23% |
| 30°C | 8% |
| 31°C | 2% |
| 25°C or below | 0% |
| 26°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C or higher | 0% |
Market context
Hong Kong will record its peak daily temperature for 16 July 2026, with the Hong Kong Observatory set to publish the absolute maximum in degrees Celsius once the daily extract is finalized. The market currently implies a 0% probability for any outcome below the frontrunner, yet Polymarket data shows 29°C leading at 39% and 30°C second at 28%, suggesting the crowd expects a warm but not extreme mid-summer day [1].
Historical mid-July maxima in Hong Kong typically range between 28°C and 33°C, with 29°C and 30°C representing the most frequent outcomes in recent decades under normal to above-normal temperature conditions. The Hong Kong Observatory’s seasonal forecast for July–September 2026 indicates temperatures are expected to be normal to above-normal, aligning with the market’s current weighting toward the 29–30°C bands rather than extremes [2]. This context frames the 0% implied probability for lower ranges as consistent with seasonal expectations, not an anomaly.
Traders should monitor the Observatory’s Daily Extract release, which finalises the “Absolute Daily Max (deg. C)” and triggers settlement, as delays in data publication could extend the resolution window beyond the 2026-07-16T12:00:00Z deadline. No immediate weather announcements or coaching changes apply, but the ENSO status and climate model outputs cited in the seasonal forecast remain the primary dependencies for temperature deviations [2]. Watch for any sudden shifts in the 29°C and 30°C probabilities as the day progresses, since real-time observations often refine crowd-implied odds before final publication.
Methodology
Sports-specific comparison page for Highest temperature in Hong Kong on July 16?. 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 or Manifold.
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.
- 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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