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 |
|---|---|
| AC Goianiense (-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% |
| Both Teams to Score in First Half | 100% |
| 1st Half O/U 0.5 | 100% |
| 1st Half O/U 1.5 | 100% |
| 1st Half O/U 2.5 | 100% |
| AC Goianiense O/U 0.5 | 100% |
| AC Goianiense O/U 1.5 | 100% |
| AC Goianiense O/U 2.5 | 100% |
| Operário Ferroviário EC O/U 0.5 | 100% |
| AC Goianiense 1st Half O/U 0.5 | 100% |
| AC Goianiense 1st Half O/U 1.5 | 100% |
| Operário Ferroviário EC 1st Half O/U 0.5 | 100% |
| 2nd Half O/U 0.5 | 100% |
| AC Goianiense 2nd Half O/U 0.5 | 100% |
| Operário Ferroviário EC O/U 1.5 | 1% |
| Operário Ferroviário EC O/U 2.5 | 1% |
| Both Teams to Score in Second Half | 1% |
| 2nd Half O/U 1.5 | 1% |
| 2nd Half O/U 2.5 | 1% |
| AC Goianiense 2nd Half O/U 1.5 | 1% |
| Operário Ferroviário EC 2nd Half O/U 0.5 | 1% |
| Operário Ferroviário EC 2nd Half O/U 1.5 | 1% |
| Operário Ferroviário EC (-1.5) | 0% |
| AC Goianiense (-2.5) | 0% |
| Operário Ferroviário EC (-2.5) | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Operário Ferroviário EC 1st Half O/U 1.5 | 0% |
Market context
AC Goianiense and Operário Ferroviário EC are scheduled to contest a Brazil Serie B fixture on 27 July at 6:30 PM ET. The market currently trades at 100% YES on Polygon, denominated in USDC conditional tokens, reflecting settlement contingent on additional betting markets materialising for this specific match. At present, Polymarket's pricing suggests near-certainty that supplementary markets will be created before the settlement window closes on 27 July at 22:30 UTC—a four-hour buffer after kick-off.
The 100% probability reflects a pattern observed across Polymarket's sports offerings: Serie B matches typically generate multiple derivative markets (first goalscorer, exact score, both teams to score) within hours of fixture confirmation. Historical precedent shows that mid-tier Brazilian league matches attract sufficient liquidity to justify secondary market creation, particularly when the primary match is already listed. The conditional token structure incentivises market creators to launch additional contracts once the underlying event gains traction.
Traders should monitor Polymarket's official fixture calendar and any announcements regarding broadcast availability in key jurisdictions, as these drive market proliferation. Fixture postponements or cancellations—rare but possible in Brazilian football—would directly impact settlement. The tight four-hour settlement window means any market creation delays post-match would be immaterial; the key catalyst is whether additional markets launch before kick-off or during the first half, when liquidity typically concentrates.
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.
- 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.
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