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 |
|---|---|
| 36°C | 100% |
| 30°C or below | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C | 0% |
| 37°C | 0% |
| 38°C | 0% |
| 39°C | 0% |
| 40°C or higher | 0% |
Market context
Busan’s peak temperature will be measured at Gimhae International Airport, and the market settles on whichever Celsius bracket contains the day’s highest reading from Wunderground’s daily history page. In practical terms, this is a late-summer heat event in a coastal city where August normals are already warm: climate averages for Busan cluster around an 87°F high, or roughly 31°C, with humidity typically elevated[16][9].
The current 0% YES crowd price sits below the recent regional heat backdrop. South Korea has just been through a severe hot spell, with Busan reported at 38.8°C in a previous record-setting episode and Yangsan reaching 42.5°C on 2 August 2026, the country’s highest ever temperature[4][3]. That makes upper-temperature outcomes more plausible than in a mild year, but Busan’s maritime location and airport-based observation can still keep the terminal reading lower than inland maxima[15][16].
For traders, the main catalysts are the day’s actual synoptic setup, any last-minute KMA heat advisories, and whether cloud cover or rain suppresses the airport’s top reading during the local afternoon. Forecasts published on 5–6 August pointed to Busan highs around 33°C, with nearby reporting also flagging a broader peninsula heat wave, so the accessible distribution is still centred well below record territory[10][12]. On market access, German GlüStV rules can materially affect whether participation is permitted from Germany, because prediction markets are often treated as gambling-style products under a restrictive regime; US persons should also note that the CFTC can assert reach over derivatives-like activity, depending on the platform structure. A “no-KYC up to $1,500” threshold generally means small accounts can trade or withdraw without full identity verification, but it does not remove geo-blocking, sanctions screening, or local compliance checks for this specific weather contract.
Methodology
This overview of Highest temperature in Busan on August 6? 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.
- 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).
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Germany Legal would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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