Will Super Typhoon Dolphin hit Japan?

Platform comparison

Market context

Typhoon Dolphin’s path towards Japan has already put parts of the southern island chain in the potential impact zone, with recent forecasts flagging Okinawa and the Ryukyu Islands as the most likely early points of contact. The market resolves **Yes** if the storm’s circulation centre physically crosses any Japanese coastline, so an approach, near miss, or heavy rain event alone is not enough; the key question is whether JMA advisories show the centre over land before the settlement cut-off on 15 August.[2][9]

For context, typhoon markets on Japan often move sharply when the track firms up around Okinawa, because that corridor can decide whether a system stays offshore, clips the islands, or tracks on to Kyushu and the main islands. Current reporting has been broadly consistent that Dolphin is moving west to west-north-west with a close approach to Okinawa, while model guidance has also shown spread on whether it bends towards China or remains on a Japan-facing path, which is why the 100% crowd price should be read as a statement about current consensus rather than certainty.[1][8][15]

For traders, the main catalysts are the next JMA position advisories, JTWC updates, and any official Okinawa or Ryukyu warnings that clarify the landfall corridor and timing.[1][9] Recent reporting has pointed to a close approach around Okinawa and a possible slowdown near the East China Sea, which can extend the window for a coastline crossing.[2][9] On access, German GlüStV rules can materially limit availability for users treated as gambling participants in Germany, US CFTC reach is relevant where a market is deemed a derivative or event contract, and “no-KYC up to $1,500” generally means small trades may be possible without full identity verification until cumulative activity or withdrawal thresholds trigger checks.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Will Super Typhoon Dolphin hit Japan? 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.

UK Frequently Asked Questions

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 Legal UK has a different geo footprint.

Is Polymarket regulated by the UKGC?

No. Polymarket is not licensed by the UK Gambling Commission (UKGC). It is a decentralised prediction market operated under US regulation. UK traders can use it but do not benefit from UKGC dispute resolution or player protection requirements.

What are the HMRC tax rules on Polymarket profits for UK traders?

Polymarket profits are treated as cryptocurrency disposal events by HMRC. Each USDC settlement is a taxable event subject to Capital Gains Tax (CGT). For 2026/27, the CGT rate is 18% (basic rate) or 24% (higher rate). The annual CGT exemption is £3,000. Report via HMRC Self Assessment if your total crypto gains exceed £3,000 or proceeds exceed £50,000.

Does Polymarket KYC apply to UK users?

Yes. Polymarket requires KYC (Know Your Customer) verification for all users, including UK residents. You must provide a government-issued photo ID and a selfie. The process typically takes 5–10 minutes via their ID verification provider.

What is the legal difference between Polymarket and Betfair Exchange for UK traders?

Betfair Exchange is UKGC-licensed, meaning UK consumer protections apply and winnings are typically tax-free. Polymarket is not UKGC-licensed — it operates under decentralised blockchain rules. Profits from Polymarket are subject to HMRC CGT as crypto disposals. Choose based on your regulatory preference and tax situation.