Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legal in California) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 36°C | 100% |
| 27°C or below | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C | 0% |
| 37°C or higher | 0% |
Market context
The temperature at Taipei Songshan Airport on 22 July is the underlying event, with the market settling to the band that contains the day’s highest reading from Wunderground’s station record. At 10:00 UTC, AccuWeather showed Taipei Songshan Airport at 88°F with a RealFeel of 103°F, cloudy conditions, 71% humidity, and light winds, which is consistent with a hot summer pattern but not a completed daily high[2].
The current 0% crowd-implied probability for YES should be read cautiously because the outcome is still live until the station’s afternoon maximum is known and published. By contrast, Polymarket’s own market page already shows 36°C as the leading bracket, which indicates that traders are assigning essentially all probability to a high-temperature outcome rather than the lower ranges[1]. For a late-July Taipei reading, historical framing usually matters more than intraday drift: the relevant comparison is whether Songshan reaches a post-noon peak materially above the upper-20s or low-30s, because that determines which settlement band Wunderground will place it in[1].
For accessibility, the practical issue is not the weather data but the venue’s compliance profile. If the platform is operating under German GlüStV constraints, a market may be geoblocked or otherwise restricted for users in Germany; if a venue falls within US CFTC reach, US access can also be limited by derivatives and event-contract rules. A “no-KYC up to $1,500” setup typically means a user can open or use the market with lighter identity checks until cumulative activity crosses that threshold, which makes entry easier but does not remove jurisdiction-based restrictions or change how the Taipei temperature outcome is resolved.
Methodology
This overview of Highest temperature in Taipei on July 22? 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 Legal in California has a different geo footprint.
- Do I need to KYC for Is Kalshi Legal in California?
- 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.
- 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 Legal in California 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.
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