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 1 Winner | 100% |
| Map 2 Winner | 100% |
| Match Winner | 100% |
| Map Handicap: SAW (-1.5) vs Esport Academy Copenhagen (+1.5) | 100% |
| Map 1 Total Rounds: Over/Under 21.5 | 100% |
| Map 2 Rounds Handicap: SAW (-3.5) vs Esport Academy Copenhagen (+3.5) | 90% |
| Map 2 Total Rounds: Over/Under 21.5 | 90% |
| Map 2 Total Rounds: Over/Under 24.5 | 90% |
| Map 3 Rounds Handicap: SAW (-3.5) vs Esport Academy Copenhagen (+3.5) | 50% |
| Map 3 Total Rounds: Over/Under 21.5 | 50% |
| Map 2 Rounds Handicap: SAW (-6.5) vs Esport Academy Copenhagen (+6.5) | 10% |
| O/U 2.5 Games | 0% |
| Map 1 Rounds Handicap: SAW (-3.5) vs Esport Academy Copenhagen (+3.5) | 0% |
| Map 1 Rounds Handicap: SAW (-6.5) vs Esport Academy Copenhagen (+6.5) | 0% |
| Map 1 Total Rounds: Over/Under 24.5 | 0% |
Market context
SAW and Esport Academy Copenhagen are due to meet in a best-of-three Counter-Strike 2 match in Esports World Cup Group 3, with the listed start time at 09:00 UTC. The market’s 100% implied Yes price signals that traders are treating a SAW win as the near-certain base case, but the contract still settles only on the official result, with non-played, tied, or heavily delayed outcomes reverting to 50-50 under the rules.
That sort of pricing is usually most useful when the market is thin and the outcome tree is simple: a favourite can still be overbought if the book is anchored to stale pre-match assumptions rather than live team news. By comparison, third-party esports boards are already broadly aligned with SAW as the stronger side, with one live preview showing SAW around 63% and another crowd poll putting them above 92%, which indicates the broader market has consistently leaned their way rather than this price being an isolated spike.[4][12][15]
The main catalysts are operational rather than macro: confirmed server start, map veto completion, any schedule slip, and whether the match is still shown as upcoming rather than live across tournament trackers.[1][2][16] Because the settlement window runs to 16:00 UTC, a postponement that pushes play beyond seven days would force the 50-50 fallback, so traders should watch for organiser updates and bracket changes more than team sentiment.[16][17] On-chain, the relevant issue is that any profit or loss is final in USDC once the oracle resolves, so there is no exposure to later price moves in BTC or ETH unless wider crypto volatility is driving liquidity into or out of prediction markets.
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.
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- 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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