Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Map 2 Winner | 100% |
| O/U 2.5 Games | 100% |
| Map 2 Rounds Handicap: BESTIA (-3.5) vs ALKA (+3.5) | 90% |
| Map 1 Rounds Handicap: ALKA GAMING (-3.5) vs BESTIA (+3.5) | 90% |
| Map 2 Total Rounds: Over/Under 18.5 | 90% |
| Match Winner | 83% |
| Map 3 Rounds Handicap: BESTIA (-3.5) vs ALKA (+3.5) | 50% |
| Map 3 Total Rounds: Over/Under 21.5 | 50% |
| Map 1 Rounds Handicap: BESTIA (-6.5) vs ALKA GAMING (+6.5) | 10% |
| Map 1 Total Rounds: Over/Under 24.5 | 10% |
| Map 2 Total Rounds: Over/Under 24.5 | 10% |
| Map 2 Rounds Handicap: BESTIA (-9.5) vs ALKA GAMING (+9.5) | 10% |
| Map 2 Rounds Handicap: BESTIA (-6.5) vs ALKA GAMING (+6.5) | 10% |
| Map 1 Rounds Handicap: BESTIA (-3.5) vs ALKA (+3.5) | 2% |
| Map 1 Total Rounds: Over/Under 21.5 | 2% |
| Map 1 Winner | 0% |
| Map Handicap: BST (-1.5) vs ALKA (+1.5) | 0% |
| Map Handicap: ALKA (-1.5) vs BESTIA (+1.5) | 0% |
Market context
BESTIA’s quarter-final against ALKA in BetBoom Storm is a best-of-three scheduled for 14 August at 23:00 UTC, with market settlement tied to the match outcome unless the fixture is not played, ends level, or drifts beyond the seven-day window. Public match listings show the game as a playoff BO3, while one market page also notes BESTIA as the clearer pre-match favourite, which is consistent with a 0% YES crowd price only if liquidity has been thin or the order book has been pinned far below fair value[1][3][5].
The main historical guide here is how CS2 playoff markets behave when a favourite looks one-sided on paper but the actual event is still subject to scheduling and broadcast risk. BESTIA have been priced ahead of ALKA on third-party previews, with scoreline markets leaning towards a 2-0 or 2-1 BESTIA win, but markets can still end up at 50-50 if the series is postponed, abandoned or ruled void under the contract terms[3][5][11].
Traders should watch for official bracket updates, server timing, and whether the series actually starts on schedule, because a late reschedule can flip the settlement outcome even if one team is favoured in the underlying match. On the crypto side, BTC perpetual funding was positive and elevated in recent readings, with ETH also showing positive funding, which can matter for broader USDC-denominated risk appetite even if there is no direct link to the CS2 result itself[9].
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
UK Frequently Asked Questions
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- 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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