Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
16% | 84% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
16% | 84% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| August 17 | 16% |
| August 16 | 14% |
| August 15 | 9% |
| August 14 | 7% |
| August 12 | 5% |
| August 13 | 5% |
| August 11 | 3% |
| August 10 | 1% |
Market context
Polymarket prices this contract at **1% YES** today, implying traders think a live clearance of the full hardcore Minecraft checklist is very unlikely on the current schedule. The market is settled in **USDC** on **Polygon**, with the contract paying out via **conditional tokens** only if Kai Cenat and IShowSpeed finish the required live run before the deadline; if they fail, die in-game, or stop short of any boss, it resolves **No**.
The closest historical read is their previous hardcore Minecraft marathon, which ultimately took roughly **105 hours** and **42 world resets** before they beat the Ender Dragon, showing how fragile a no-death run can be even when the pair are heavily committed.[4][5][8][9] This new contract is harder than that earlier run because it requires **four bosses** on the same seed, not just one, and community coverage has already framed the target as potentially stretching well beyond a few days.[7][12][16] That history is the main reason a 1% price is not irrational: the base rate for a clean, uninterrupted completion is low, even before accounting for the extra bosses.
For traders, the key catalysts are simple: whether both creators actually stay live, whether they keep the same world alive, and whether they make early progress on the Ender Dragon before any irreversible death or restart. The scheduled start was set for **7 August 2026 at 5:00 PM ET**, and recent coverage said the pair planned to stream continuously on Twitch and YouTube until the bosses were cleared.[7][12][16] On a market like this, any announcement about time limits, pauses, or an altered rule set matters more than general hype, because the settlement depends on the precise live challenge rather than on partial progress.
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 PolyGram, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
UK Frequently Asked Questions
- 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.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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%.
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