Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| São Paulo FC (-1.5) | 100% |
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| O/U 3.5 | 100% |
| Both Teams to Score | 100% |
| 1st Half O/U 0.5 | 100% |
| São Paulo FC O/U 0.5 | 100% |
| São Paulo FC O/U 1.5 | 100% |
| São Paulo FC O/U 2.5 | 100% |
| Club Bolívar O/U 0.5 | 100% |
| São Paulo FC 1st Half O/U 0.5 | 100% |
| Both Teams to Score in Second Half | 100% |
| 2nd Half O/U 0.5 | 100% |
| 2nd Half O/U 1.5 | 100% |
| 2nd Half O/U 2.5 | 100% |
| São Paulo FC 2nd Half O/U 0.5 | 100% |
| São Paulo FC 2nd Half O/U 1.5 | 100% |
| Club Bolívar 2nd Half O/U 0.5 | 100% |
| Club Bolívar (-1.5) | 0% |
| São Paulo FC (-2.5) | 0% |
| Club Bolívar (-2.5) | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| Club Bolívar O/U 1.5 | 0% |
| Club Bolívar O/U 2.5 | 0% |
| São Paulo FC 1st Half O/U 1.5 | 0% |
| Club Bolívar 1st Half O/U 0.5 | 0% |
| Club Bolívar 1st Half O/U 1.5 | 0% |
| Club Bolívar 2nd Half O/U 1.5 | 0% |
Market context
São Paulo FC will host Club Bolívar in a Copa Sudamericana fixture on 18 August at 8:30 PM ET, with the market currently reflecting 100% implied probability that additional betting markets will be offered on this match. The settlement window closes just after midnight on 19 August, giving a narrow window for secondary markets to be listed and resolved.
The 100% consensus here reflects standard practice in Copa Sudamericana coverage. Major sportsbooks and prediction platforms routinely expand market offerings for continental club competitions, particularly when Brazilian clubs are involved and liquidity is expected. Historical precedent suggests that when a primary match is scheduled, supplementary markets—including handicaps, goal totals, and player-specific outcomes—materialise within hours of kickoff. São Paulo's status as a prominent Série A side typically guarantees broader market depth than smaller regional fixtures would receive.
The key dependency is whether the match proceeds as scheduled and whether the operator deems sufficient liquidity likely to justify listing additional markets. Weather, team news, or fixture postponements could theoretically prevent secondary markets from launching, though such disruptions are rare at this stage of the tournament calendar. Bolívar's recent form and any late injury announcements to São Paulo's squad could influence whether traders perceive value in backing or laying the proposition, but the underlying event itself remains locked in. The tight settlement window means markets would need to be live and resolved swiftly, creating practical constraints on how many exotic options might actually appear.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
UK Frequently Asked Questions
- 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.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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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