Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
89% | 11% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
89% | 11% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 25–30M | 89% |
| 30–35M | 10% |
| 20–25M | 1% |
| 35–40M | 1% |
| <20M | 0% |
| 40–45M | 0% |
| 45–50M | 0% |
| 50M+ | 0% |
Market context
MrBeast has not posted the next long-form upload yet, so the market is still being driven by the timing and format of the eventual release rather than any fresh day-one reading. The current 1% YES price implies the crowd thinks an exact bracket above the lower ranges is highly unlikely, with the main risk to that view being another unusually broad, high-concept upload that can still break out fast on first-day YouTube reach.
The historical frame matters because MrBeast’s first-24-hour results have been volatile but consistently large: recent analyses put major uploads in roughly the 10–25 million day-one band, while other trackers cite a more recent cluster in the mid-30 millions, with outliers above 50 million on the biggest concepts[2][5]. Published examples include a philanthropy upload that drew 14.4 million in its first 24 hours and a blockbuster challenge video that reportedly reached about 71 million in a day, showing that the channel can swing far between ordinary and record-setting releases[9][11]. That range explains why a low-probability bracket can still be plausible if the next upload is less event-like than the biggest tent-poles.
For traders, the key catalysts are MrBeast’s upload schedule, the scale of the thumbnail/title package, and whether the video is a collaboration or high-budget stunt that can travel quickly beyond the existing subscriber base. Prediction-market commentary in late July already noted a sharp move in sentiment as traders reassessed the next upload’s likely velocity, and the same logic applies here: the first public sign of a new main-channel video will matter more than any pre-release chatter[3]. If there is no upload by the deadline in the rules, the market resolves to the lowest bracket.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
UK Frequently Asked Questions
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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%.
Trade # of views of next MrBeast video on day 1? on Prediction Today
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