Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
59% | 41% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
59% | 41% | 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 | 59% |
| 33°C | 22% |
| 34°C | 10% |
| 31°C | 5% |
| 35°C | 2% |
| 27°C or below | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 36°C | 0% |
| 37°C or higher | 0% |
Market context
On 15 August 2026, the highest temperature recorded at Shenzhen Bao'an International Airport Station will determine the settlement outcome for this market. The resolution will draw from the Daily Observations table on Weather Underground rather than summary figures, establishing a precise methodological baseline for temperature measurement across the specified range bands.
Shenzhen's August climate sits within a predictable envelope. Historical data from the past decade shows daily highs in mid-August consistently ranging between 32–35°C, with occasional spikes to 36°C during particularly intense heat waves. The 0% crowd probability suggests traders are pricing in either an unusually cool day or scepticism about extreme heat materialising. August represents the tail end of Shenzhen's summer monsoon season, when afternoon thunderstorms can suppress temperatures, though such events typically occur after peak heating hours rather than preventing them entirely.
The primary catalyst affecting this outcome remains the broader Western Pacific weather pattern in early-to-mid August 2026. Tropical cyclone activity or shifts in the subtropical high-pressure system could either elevate temperatures above the historical 35°C median or introduce cloud cover and precipitation that moderates afternoon peaks. Traders should monitor seasonal forecasts from the China Meteorological Administration and track any typhoon development in the South China Sea during the week preceding settlement, as these systems can dramatically alter local conditions within 48 hours of landfall or near-miss scenarios.
Methodology
Sports-specific comparison page for Highest temperature in Shenzhen on August 15?. 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.
UK Frequently Asked Questions
- 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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