Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
97% | 3% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
97% | 3% | 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 |
|---|---|
| 32°C | 97% |
| 33°C | 3% |
| 34°C | 1% |
| 27°C or below | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 35°C | 0% |
| 36°C | 0% |
| 37°C or higher | 0% |
Market context
Shenzhen is in the middle of a humid, rainy summer pattern, so the relevant question is whether the airport high lands in the low-30s Celsius band or pushes a degree or two above it. August climatology for the city usually centres on a high around 32°C, with typical daytime peaks often in the 27°C–32°C range and frequent rainfall and humidity keeping conditions unstable rather than heatwave-like[4][6][10][18].
That background helps explain why the market’s current concentration around 31°C–33°C is more plausible than the 0% crowd-implied chance of a low or outlier result. The Polymarket ladder currently puts 32°C in front at 38%, with 31°C at 22% and 33°C at 20%, which is consistent with the normal August distribution rather than an exceptional hot or cool day[1]. If the airport observes any cloud cover, showers, or sea-breeze influence through the afternoon, the realised maximum can easily stay one notch below the climatological average; if sunshine dominates, 33°C becomes more live[5][10][19].
The main catalysts are the same ones that move most weather markets: the latest local forecast updates, the timing of any afternoon thunderstorms, and whether the high is reached before convective rain builds. Shenzhen’s August forecasts often show warm mornings and a sharp dependence on precipitation timing, with daily ranges commonly sitting near 31°C–33°C on comparable days this week[5][15]. Traders should watch the weather track through the day rather than one static forecast, because the settlement source is the highest temperature recorded at Shenzhen Bao’an International Airport Station on 5 August[1].
Methodology
Sports-specific comparison page for Highest temperature in Shenzhen on August 5?. 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.
- 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.
- 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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