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 |
|---|---|
| 28°C | 100% |
| 24°C or below | 0% |
| 25°C | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C or higher | 0% |
Market context
The real-world event is the **highest temperature recorded at Beijing Capital International Airport Station on 23 July 2026**, as reported by Wunderground for the settlement source, so the market is effectively a single-day weather range bet rather than a city-wide temperature call.[1] With the current crowd-implied price at **0% YES** while the live market leaderboard shows **28°C** as the frontrunner and **29°C** next, the pricing is better read as a disagreement over where the day’s peak will fall than as a view that the event will miss entirely.[1]
For context, weather markets tend to track the upper end of recent seasonal norms rather than any one forecast run, and a zero price can persist when traders expect the settlement band to be just outside the dominant range or when liquidity is thin. The regulatory frame matters here: in Germany, the **GlüStV** can affect whether a user is treated as accessing gambling-style content subject to local restrictions, while in the US the **CFTC** reach is relevant because temperature outcomes are still event-linked contracts rather than pure sports bets, so access can be shaped by venue policy and jurisdiction rather than the weather itself.
For accessibility, “**no-KYC up to $1,500**” typically means a user can participate without identity verification until cumulative activity or balance thresholds are reached, which lowers friction for small positions but does not remove geo-blocking, sanctions screening, or platform-level compliance checks. The practical catalysts are the Beijing airport station’s intraday observations and any forecast updates that shift expectations around the afternoon high; because settlement depends on the station’s recorded maximum, traders usually watch local forecast revisions, cloud cover, humidity, and whether the airport’s official observation point is hit by late-day warming or convective rain.
Sources: 1
Methodology
This overview of Highest temperature in Beijing on July 23? 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
- Is Polymarket legal in my country?
- Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Polymarket Tax UK has a different geo footprint.
- 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.
- 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.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
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