Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Germany Legal) Pick polygram.ink (preferred broker) |
43% | 57% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
43% | 57% | 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 |
|---|---|
| 90-91°F | 43% |
| 92-93°F | 38% |
| 94-95°F | 19% |
| 96-97°F | 7% |
| 98-99°F | 1% |
| 87°F or below | 0% |
| 88-89°F | 0% |
| 100-101°F | 0% |
| 102-103°F | 0% |
| 104-105°F | 0% |
| 106°F or higher | 0% |
Market context
Houston’s outcome here is simply the day’s *highest temperature at William P. Hobby Airport*, so the relevant question is whether the afternoon can reach or exceed the mid-90s Fahrenheit rather than what the city’s general forecast says. A recent Houston past-weather record shows a 95°F high in the area, with light winds and only modest gusts, which is a useful reference point for how quickly heat can build when skies are calm.[1]
A **0% YES** crowd price implies the market is treating that outcome as effectively out of reach, usually because the day has already passed or because the settlement data path makes a specific range look impossible to hit. For context, July in Houston commonly supports highs in the 90s, and the Wunderground resolution source for Hobby Airport means traders should focus on the station-specific observed maximum rather than broader metro forecasts. Comparable summer heat events in Houston often settle around the low-to-mid 90s, so any late swing in sentiment would usually need a clear forecast or observation surprise, not a routine warm day.[1]
From an accessibility angle, the legal framing matters as much as the weather. In Germany, prediction markets can fall under the GlüStV regime if they are treated as gambling-like products, so access depends on how the platform classifies the market and the user’s jurisdictional status. In the US, the CFTC can reach derivatives-like event contracts, which is why venue structure and operator permissions matter even when the underlying event is weather rather than politics. Where a platform advertises *no-KYC up to $1,500*, that usually means small-value participation may be available without full identity verification, but only within the platform’s limits and subject to regional access controls.[1]
Sources: 1
Methodology
This overview of Highest temperature in Houston 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
- 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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