Kai and Speed finish their Minecraft marathon by 2026?

Platform comparison

Market context

Polymarket has this contract at **6% YES**, which prices in only a small chance that Kai Cenat’s Twitch broadcast of the Minecraft marathon actually ends before the settlement window closes. The market settles on the time Kai’s Twitch channel stops broadcasting the marathon, provided he does not resume within 12 hours, so the tradable question is not whether the duo finish the game on paper but whether the stream itself wraps in time on Twitch and then stays off long enough to count.[16][18]

The nearest comparable case is their previous hardcore Minecraft marathon in 2024, which ran for roughly **105 hours** and ended only after they finally beat the Ender Dragon, with reports putting the finish at about 105 hours and 44 minutes and 42 deaths.[2][4][5][7][13] That history explains why the market still trades as a longshot even though a previous run eventually concluded: marathon streams of this sort have a strong tendency to stretch well beyond initial expectations, and the last time the pair attempted this format the endpoint arrived only after days of continuous play.[3][13]

For traders, the main catalysts are simple: the official challenge structure, any change to the boss checklist, and whether the duo pause, restart or split the broadcast across channels. A recent preview said the new run begins on 7 August at 5 p.m. ET and could continue for days, with one report warning that even a pace similar to the earlier marathon would push the finish towards 11 August.[16][18] Under the market’s mechanics, the relevant watchpoint is the exact Twitch end time in ET on Kai’s channel, because the resolution depends on that broadcast stopping and staying stopped for 12 hours, all settled through Polymarket’s USDC-based conditional tokens on Polygon.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Alternative UK, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

UK Frequently Asked Questions

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.