Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Germany Legal) Pick polygram.ink (preferred broker) |
96% | 4% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
96% | 4% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 24°C | 96% |
| 25°C | 5% |
| 26°C | 1% |
| 23°C or below | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C or higher | 0% |
Market context
The relevant real-world event is the **maximum air temperature** recorded at Chongqing Jiangbei International Airport Station on 3 August 2026, as reported by Wunderground, and the market resolves to whichever Celsius range contains that daily high. August is normally the hottest part of the year in Chongqing, with published climate guides putting typical August highs around **33–34°C** and noting that heatwave days can run materially hotter, so the settlement outcome depends on whether the airport station reaches an ordinary late-summer high or pushes into a more extreme reading.[2][4][9][16]
The current **0% YES** crowd price is best read against the fact that the event is still open until the settlement window closes, but the underlying weather pattern in Chongqing is highly seasonal rather than binary: August often brings both oppressive heat and rainfall, which can cap daytime highs or keep them near the low-to-mid 30s Celsius.[2][9][19] Comparable historical framing matters here because Chongqing has produced far higher extremes in recent years, including a city-level record of **43°C** in 2022, showing that the market is not about whether it can be hot, but how hot the airport station is on that specific day.[4]
For accessibility, the regulatory backdrop is the key filter. In Germany, **GlüStV** issues can matter because prediction markets may be viewed through gambling-law constraints, especially where event-based contracts are offered to retail users. In the US, the **CFTC** has reach over derivatives activity connected to US persons or US-facing platforms, which is relevant to how a market like this is offered and monitored. The platform’s **no-KYC up to $1,500** means smaller users can typically access the market with lighter onboarding friction, but that does not remove identity, residence, or sanctions checks where they apply, and larger balances or withdrawals can trigger additional verification requirements.
Methodology
This overview of Highest temperature in Chongqing on August 3? 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 Germany Legal has a different geo footprint.
- 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 Germany Legal 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 Germany Legal exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- 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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