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 |
|---|---|
| 90-91°F | 100% |
| 79°F or below | 0% |
| 80-81°F | 0% |
| 82-83°F | 0% |
| 84-85°F | 0% |
| 86-87°F | 0% |
| 88-89°F | 0% |
| 92-93°F | 0% |
| 94-95°F | 0% |
| 96-97°F | 0% |
| 98°F or higher | 0% |
Market context
The day’s key event is the **highest observed air temperature at LaGuardia Airport** being captured in a specific Fahrenheit band, not the forecast headline temperature for Manhattan or another borough. That matters because this market settles on the **single highest reading recorded on Wunderground for KLGA** during the day, with revisions only counted until the first datapoint for the following date is published. [1]
The crowd’s current **0% YES** implies the market is effectively discounting every listed band, but comparable pricing elsewhere has centred on the upper-80s to low-90s Fahrenheit range, with one venue showing the 88–89°F band narrowly ahead of 90–91°F. [1] Recent weather coverage also pointed to a New York heat advisory, with actual highs expected in the upper 80s to lower 90s and heat indices near or above 100°F, which is the kind of setup that can lift airport readings even when the city feels much hotter than the thermometer suggests. [10]
For accessibility, the regulatory picture depends on where the trader is based and which venue they use. In Germany, prediction markets can sit within the scope of the **GlüStV** gambling framework, so platform availability and participation may be restricted or treated differently from ordinary financial trading. In the US, the **CFTC’s reach** becomes relevant where a market is structured or offered as a derivatives-style contract, even if the underlying question is weather rather than finance. A “**no-KYC up to $1,500**” policy generally means limited trading may be possible without full identity verification until a cumulative threshold is reached, but that does not remove geo-blocking, age checks, or any platform-specific compliance controls for access to this particular market.
Methodology
This overview of Highest temperature in NYC 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
- 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. Is Kalshi Legit has a different geo footprint.
- Do I need to KYC for Is Kalshi Legit?
- 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.
- 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.
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Is Kalshi Legit would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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