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 |
|---|---|
| O/U 0.5 | 100% |
| 1st Half O/U 0.5 | 100% |
| SE Palmeiras O/U 0.5 | 100% |
| SE Palmeiras 1st Half O/U 0.5 | 100% |
| Club Cerro Porteño (-1.5) | 0% |
| SE Palmeiras (-1.5) | 0% |
| Club Cerro Porteño (-2.5) | 0% |
| SE Palmeiras (-2.5) | 0% |
| O/U 1.5 | 0% |
| O/U 2.5 | 0% |
| O/U 3.5 | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Both Teams to Score | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| Club Cerro Porteño O/U 0.5 | 0% |
| Club Cerro Porteño O/U 1.5 | 0% |
| Club Cerro Porteño O/U 2.5 | 0% |
| SE Palmeiras O/U 1.5 | 0% |
| SE Palmeiras O/U 2.5 | 0% |
| Club Cerro Porteño 1st Half O/U 0.5 | 0% |
| Club Cerro Porteño 1st Half O/U 1.5 | 0% |
| SE Palmeiras 1st Half O/U 1.5 | 0% |
| Both Teams to Score in Second Half | 0% |
| 2nd Half O/U 0.5 | 0% |
| 2nd Half O/U 1.5 | 0% |
| 2nd Half O/U 2.5 | 0% |
| Club Cerro Porteño 2nd Half O/U 0.5 | 0% |
| Club Cerro Porteño 2nd Half O/U 1.5 | 0% |
| SE Palmeiras 2nd Half O/U 0.5 | 0% |
| SE Palmeiras 2nd Half O/U 1.5 | 0% |
Market context
Cerro Porteño and Palmeiras went into the second leg of their Copa Libertadores round-of-16 tie level at 1-1 on aggregate, after a 1-1 draw in São Paulo on 12 August and a return fixture in Asunción on 19 August. That leaves the knockout format finely balanced: any winner goes through, while another draw would push the tie to penalties, which is the main reason a 0% crowd-implied price on “More Markets” reflects a very specific, event-driven contract rather than a broad football view.[1][3][11]
Comparable Libertadores ties with a first-leg draw often tighten quickly around the late stages because the settlement question depends on whether the full market set is posted and resolved before the window closes, not simply on the match result itself. In on-chain terms, that means the relevant risk is operational as much as sporting: if the market creator’s conditions hinge on a defined list of ancillary outcomes, USDC settlement depends on final confirmation of those sub-events before the deadline, while the main leg result is already clear.[2][13]
For traders, the key catalysts are the official match report, any change to kick-off timing, and whether the platform’s “More Markets” catalogue was fully opened and settled by the stated deadline of 2026-08-19T22:00:00Z. If broader crypto conditions matter, BTC and ETH funding has been positive on recent futures data, which can affect risk appetite on prediction venues even when the underlying contract is sports-linked; that is a macro overlay rather than a direct driver of the football result.[14]
Methodology
This page reads Club Cerro Porteño vs. SE Palmeiras - More Markets on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
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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