Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| Both Teams to Score | 100% |
| CR Flamengo O/U 0.5 | 100% |
| Cruzeiro EC O/U 0.5 | 100% |
| CR Flamengo 1st Half O/U 0.5 | 100% |
| 2nd Half O/U 0.5 | 100% |
| Cruzeiro EC 2nd Half O/U 0.5 | 100% |
| 1st Half O/U 0.5 | 99% |
| Both Teams to Score in Second Half | 99% |
| 2nd Half O/U 1.5 | 99% |
| CR Flamengo 2nd Half O/U 0.5 | 99% |
| CR Flamengo O/U 1.5 | 64% |
| O/U 3.5 | 55% |
| 2nd Half O/U 2.5 | 50% |
| CR Flamengo 2nd Half O/U 1.5 | 50% |
| Cruzeiro EC 2nd Half O/U 1.5 | 50% |
| CR Flamengo O/U 2.5 | 41% |
| Cruzeiro EC O/U 2.5 | 37% |
| CR Flamengo (-1.5) | 33% |
| Cruzeiro EC O/U 1.5 | 27% |
| O/U 4.5 | 17% |
| Cruzeiro EC (-1.5) | 15% |
| CR Flamengo (-2.5) | 7% |
| Cruzeiro EC (-2.5) | 4% |
| O/U 5.5 | 3% |
| 1st Half O/U 1.5 | 1% |
| CR Flamengo 1st Half O/U 1.5 | 1% |
| Cruzeiro EC 1st Half O/U 1.5 | 1% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 2.5 | 0% |
| Cruzeiro EC 1st Half O/U 0.5 | 0% |
Market context
Flamengo and Cruzeiro will meet in the Copa Libertadores on 19 August at 20:30 ET, with settlement contingent on whether additional markets materialise for this fixture. The Polymarket contract currently prices the probability of "more markets" at 33%, reflecting trader expectations that supplementary betting options—beyond standard match outcome contracts—will be offered before the settlement window closes on 20 August at 00:30 UTC. This is a meta-market on Polymarket's own product expansion rather than the underlying sporting contest.
Historical precedent suggests Copa Libertadores fixtures between major Brazilian clubs attract layered market offerings. When Flamengo and Cruzeiro last met competitively in 2023, multiple derivative contracts appeared across prediction platforms, including player performance and aggregate scoreline markets. The 33% current pricing implies traders assess a below-even likelihood that Polymarket's operations team will deploy conditional tokens or secondary markets for this specific match, possibly reflecting bandwidth constraints or lower-than-expected platform demand.
Traders should monitor Polymarket's official announcements and the platform's market creation feed through 19 August. Copa Libertadores scheduling changes, injury disclosures, or late fixture postponements could alter whether supplementary markets justify creation costs. The settlement window's tight closure—less than four hours after kickoff—means market deployment decisions must occur before or during the match itself. Recent platform activity suggests Polymarket prioritises markets for higher-profile continental fixtures; the competitive standing of both clubs in the tournament will influence whether additional contracts launch.
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 PolyGram, 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.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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