Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Tax UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 35°C | 100% |
| 29°C or below | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 36°C | 0% |
| 37°C | 0% |
| 38°C | 0% |
| 39°C or higher | 0% |
Market context
The real-world event driving this market is the peak air temperature recorded at Guangzhou Baiyun International Airport on 10 July 2026, measured in degrees Celsius. Historical data shows Guangzhou’s July highs average around 33°C (91°F), rarely dipping below 30°C or exceeding 36°C, with the month’s hottest days typically landing near 34–35°C. A comparable case emerged on 3 July 2026, when the market correctly priced a 34°C peak at 27.5% probability before it resolved as YES, illustrating how narrow temperature bands compete against ten other outcome buckets for the remaining probability share.
Traders should monitor Wunderground’s daily updates for the Baiyun station, alongside China’s National Meteorological Centre forecasts for extreme heat advisories, as recent record-breaking July temperatures across the country—confirmed by Xinhua News Agency as the hottest since 1961—suggest elevated volatility. Regulatory accessibility hinges on jurisdiction: German GlüStV rules may restrict unlicensed platforms, while US CFTC reach extends to prediction markets offering binary outcomes, yet “no-KYC up to $1,500” permits anonymous participation for smaller bets, making this market accessible to traders avoiding identity verification despite tightening global compliance standards.
The current 0% YES probability implies the crowd expects the peak to fall outside the specific band being traded, likely due to Guangzhou’s consistent tendency for highs clustering around 33–34°C rather than the exact threshold in question. This aligns with broader patterns where July remains the hottest month annually, averaging 28.7°C overall, with torrid conditions persisting through August. No moral stance on trading is offered; the facts indicate a high-likelihood outcome outside the targeted range, driven by climatic consistency and recent record heat trends.
Methodology
This overview of Highest temperature in Guangzhou on July 10? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- Do I need to KYC for Polymarket Tax UK?
- Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Polymarket Tax UK stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Tax UK exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
Trade Highest temperature in Guangzhou on July 10? on Polymarket Tax UK
Live order book, 0% fees, USDC settlement in seconds.
Open live market →