Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Germany Legal) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| 39°C | 100% |
| 36°C or below | 0% |
| 37°C | 0% |
| 38°C | 0% |
| 40°C | 0% |
| 41°C | 0% |
| 42°C | 0% |
| 43°C | 0% |
| 44°C | 0% |
| 45°C | 0% |
| 46°C or higher | 0% |
Market context
The event here is the **highest daytime temperature at Gimhae International Airport in Busan on 1 August 2026**, as recorded by the Wunderground history page used for settlement. Busan’s early-August climate is normally hot, humid, and rain-prone, with typical average highs around 31–32°C and August the warmest month on several climate references, so the market is really about whether the day’s maximum lands near the seasonal norm or in a brief heat spike.[4][5][14]
The current **0% YES** crowd price is consistent with the fact that the market cannot settle before the date has occurred, and because the payout depends on one station’s observed maximum rather than a city-wide forecast. Comparable August data show Busan often topping out in the high 20s to low 30s Celsius, but extreme southern-Korean heat can occasionally push far higher; Anadolu reported Busan at 38.8°C during a recent regional heat episode, showing that very hot outcomes are possible even if not typical.[2][17]
For traders, the main catalysts are the day’s synoptic setup, rainfall timing, and whether the station records its peak before afternoon convection or sea-breeze relief sets in. The legally relevant wrapper is also part of the story: under Germany’s GlüStV, access to online betting-style products can trigger local licensing and blocking issues, while the US CFTC’s reach matters because some event contracts may be viewed through a derivatives lens depending on structure and venue. A “no-KYC up to $1,500” policy generally means light onboarding for smaller balances, which can make this specific market easier to access for casual users, although higher activity typically brings stricter identity checks and geofencing constraints.
Methodology
This overview of Highest temperature in Busan on August 1? 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
- 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.
- 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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