Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
77% | 23% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
77% | 23% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 77% |
| Fluminense FC O/U 0.5 | 76% |
| CR Vasco da Gama O/U 0.5 | 75% |
| 2nd Half O/U 0.5 | 75% |
| 2nd Half O/U 1.5 | 61% |
| Fluminense FC O/U 1.5 | 57% |
| Fluminense FC 1st Half O/U 0.5 | 56% |
| CR Vasco da Gama 1st Half O/U 0.5 | 56% |
| Both Teams to Score in Second Half | 56% |
| CR Vasco da Gama O/U 1.5 | 54% |
| Both Teams to Score in First Half | 51% |
| 2nd Half O/U 2.5 | 51% |
| Fluminense FC 1st Half O/U 1.5 | 50% |
| CR Vasco da Gama 1st Half O/U 1.5 | 50% |
| Fluminense FC 2nd Half O/U 0.5 | 50% |
| Fluminense FC 2nd Half O/U 1.5 | 50% |
| CR Vasco da Gama 2nd Half O/U 0.5 | 50% |
| CR Vasco da Gama 2nd Half O/U 1.5 | 50% |
| O/U 1.5 | 45% |
| CR Vasco da Gama O/U 2.5 | 45% |
| 1st Half O/U 1.5 | 43% |
| Both Teams to Score | 32% |
| 1st Half O/U 0.5 | 29% |
| Fluminense FC O/U 2.5 | 25% |
| O/U 2.5 | 19% |
| Fluminense FC (-1.5) | 10% |
| CR Vasco da Gama (-1.5) | 8% |
| O/U 3.5 | 6% |
| 1st Half O/U 2.5 | 4% |
| Fluminense FC (-2.5) | 2% |
| CR Vasco da Gama (-2.5) | 1% |
| O/U 4.5 | 1% |
| O/U 5.5 | 1% |
Market context
Fluminense’s Copa do Brasil tie against Vasco da Gama is the relevant real-world event, and the market’s **12% YES** implies this “more markets” contract is priced as a low-probability outcome relative to a standard football win market. In comparable recent meetings, the derby has often been tight rather than one-sided: the sides drew 1-1 in March 2026, Fluminense won 1-0 in February 2026, and Vasco won 3-2 in March 2026, while the broader head-to-head record across 31 matches is 14 Vasco wins, 10 Fluminense wins and 7 draws[6][10][18][2]. That profile matters because it suggests a live, volatile fixture where a single late event can flip secondary markets, even when the pre-match crowd price is muted.
For cross-platform context, public match-centre and odds pages show a more balanced derby than a 12% contract would imply, with earlier bookmaker-style or model-style probabilities in the last comparable fixture putting Fluminense near the mid-50s for victory rather than anywhere near the market’s current YES price[20]. Traders should watch the confirmed line-ups, any rotation driven by congestion in Brazilian domestic and cup scheduling, and whether the Copa do Brasil context is a first-leg, second-leg or aggregate situation, because those dependencies materially affect “more markets” prompts such as qualification, both teams to score and late-goal states[1][3][5]. Any late team-news from live score providers will matter more than historic head-to-heads once starting XIs are announced[1][3].
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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 Kalshi vs Polymarket. 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.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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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