Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
74% | 26% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
74% | 26% | 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 3 Total Rounds: Over/Under 18.5 | 74% |
| Match Winner | 51% |
| Map 1 Winner | 50% |
| Map 2 Winner | 50% |
| O/U 2.5 Games | 50% |
| Map Handicap: ASTR (-1.5) vs Kreazion (+1.5) | 50% |
| Map 1 Total Rounds: Over/Under 18.5 | 27% |
| Map 2 Total Rounds: Over/Under 18.5 | 27% |
Market context
ASTRAL and Kreazion are scheduled to meet in a best-of-three Counter-Strike decider in Esports World Cup Open Qualifier Group 1, with the market currently near a coin flip at **50% YES**. Recent match listings are not fully aligned on timing, but they do show the same pairing in the same qualifier, and one result feed already records ASTRAL beating Kreazion 2-0 in the group, which is the clearest signal that the market may be pricing either a rematch, a scheduling correction, or uncertainty around which exact fixture is being referenced.[1][2][3][11][13]
For traders, the main read-through is that this is a small-ladder qualifier where bracket context matters more than team name recognition: if the match has already been played, a correction risk is real; if it has not, the market is exposed to late schedule changes, walkovers, or a duplicate listing being resolved differently by the tournament operator. Comparable market setups in esports often move sharply once a live score feed confirms whether a BO3 is actually underway, while cancelled or unplayed matches typically push settlement back to the contract’s 50-50 fallback rather than to a side.[2][6][11][13]
The practical catalysts are straightforward: an official start confirmation, any bracket update from the event, and whether organisers keep the original slot or shift the fixture within the same day. Because the contract settles on the named winner only if the match is completed, any delay beyond seven days without a winner would also trigger the fallback outcome; in crypto terms, that makes the trade more about event integrity than about broader BTC or ETH moves, although USDC-denominated settlement means the payout logic remains isolated from spot volatility unless market-wide risk appetite spills into the odds.[3][6][17]
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
- 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.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- 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 Counter-Strike: ASTRAL vs Kreazion (BO3) - Esports W… on BTC Prediction
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