Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) 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 |
|---|---|
| 33°C | 89% |
| 34°C | 10% |
| 35°C | 1% |
| 27°C or below | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 36°C | 0% |
| 37°C or higher | 0% |
Market context
The temperature in Taipei at Songshan Airport is usually well into the low 30s Celsius in early August, so the market is being priced against a very hot late-summer baseline rather than against a mild-day outcome. Monthly guides for Taipei put August daytime highs around 32-34°C, while AccuWeather’s August calendar for Taipei shows 7 August around 89°F/81°F, which is broadly consistent with a hottest-reading band in the low 30s Celsius rather than the extremes needed for a top-end surprise.[1][3][8]
For context, the crowd’s 0% YES implies the market is treating a qualifying highest temperature as effectively impossible, but Taipei has already produced much hotter spells than its averages suggest. The Taipei Times reported temperatures above 36°C in late July 2026, showing that the city can reach levels far above the usual August guide range when heat builds before weather systems arrive.[15] That matters because the resolution is based on the *Daily Observations* entry at Taipei Songshan Airport, not the summary high/low panel, so the exact recorded peak — and not the broader forecast headline — will decide the outcome.[2]
The main trader watchlist is straightforward: afternoon heating, cloud cover, and any rain or typhoon-related disruption that limits the station’s maximum before the 12:00 UTC settlement cut-off. Forecast pages for early August already point to humid, storm-prone conditions around Taipei, with some outlets flagging shower risk and daytime maxima in the low-to-mid 30s Celsius.[5][11] If a tropical disturbance or heavier rain band tracks near northern Taiwan, the day’s ceiling can be suppressed sharply; if skies stay brighter for longer, the Songshan Airport observation can still print a materially higher number than the market’s current 0% implies.[2][5]
Methodology
Sports-specific comparison page for Highest temperature in Taipei on August 7?. 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
- 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.
- 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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