Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legit) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 14°C | 100% |
| 8°C or below | 0% |
| 9°C | 0% |
| 10°C | 0% |
| 11°C | 0% |
| 12°C | 0% |
| 13°C | 0% |
| 15°C | 0% |
| 16°C | 0% |
| 17°C | 0% |
| 18°C or higher | 0% |
Market context
Wellington’s **highest temperature** at the airport station on 23 July will be set by the warmest reading recorded during the local day, with the market resolving to the Wunderground daily history entry for Wellington Intl Airport Station. A 0% YES price implies the crowd sees the chance of the settlement landing in the relevant temperature range as extremely low, but with no live data provided here that should be treated as a market signal rather than a weather forecast.
For context, late-July Wellington maxima are usually winter-soft rather than summer-like, so the relevant comparison is not against annual extremes but against the station’s cold-season distribution and any brief northerly bursts that can lift temperatures. In a regulatory frame, access depends on where the participant is located: German users should note that the GlüStV can restrict participation in unauthorised gambling-style products, while US-facing access can raise CFTC reach concerns where derivatives characterisation matters. “No-KYC up to $1,500” generally means a trader may be able to deposit, place, or withdraw within that ceiling without submitting identity documents, which can make smaller positions easier to access but does not remove jurisdictional or platform compliance checks.
The main things to watch are the station’s recorded peak before the settlement window closes, any local weather advisories or model shifts affecting afternoon warmth, and whether the platform’s timestamp aligns cleanly with the Wunderground daily record for the airport. If the market is thin, even small updates to the forecast path or to the realised afternoon high can move pricing sharply; the practical catalyst is not a scheduled announcement but the live temperature path itself, especially around the day’s warmest hours.
Methodology
This overview of Highest temperature in Wellington 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
- 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. Is Kalshi Legit 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. Is Kalshi Legit 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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