Resolution criteria on PolyGram: More markets for the Brazil Serie B game, scheduled for May 17 at 5:30 PM ET.
PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.
Market outcomes
| AC Goianiense (-1.5) | 15% YES | 85% NO |
| Criciúma EC (-2.5) | 17% YES | 84% NO |
| AC Goianiense (-2.5) | 17% YES | 84% NO |
| O/U 1.5 | 61% YES | 39% NO |
| O/U 2.5 | 35% YES | 65% NO |
| O/U 3.5 | 18% YES | 82% NO |
| O/U 4.5 | 24% YES | 77% NO |
| Both Teams to Score | 52% YES | 49% NO |
Criciúma EC and AC Goianiense are scheduled to meet in Brazil's Serie B on 17 May at 5:30 PM ET. The market currently prices the "More Markets" outcome at 15% implied probability on Polymarket's order book, reflecting relatively low conviction amongst traders that additional betting markets will be offered for this fixture. Order book depth and spread will determine whether this probability tightens or widens as settlement approaches.
Serie B matches typically attract supplementary market offerings when fixtures involve clubs with larger supporter bases or higher stakes in the promotion race. Criciúma finished 2024 in mid-table, whilst Goianiense has historically competed for promotion. The 15% probability suggests the market perceives limited demand for extended betting options on this particular matchup compared to headline fixtures. Historical precedent shows that Polymarket's market expansion for Brazilian football depends partly on liquidity thresholds and platform operator discretion rather than fixture prominence alone.
Traders should monitor Polymarket's own market creation announcements in the week preceding 17 May, as the platform occasionally batches new markets for Serie B rounds. Team news, injury updates, and final league standings as of mid-May could influence whether this fixture gains additional trading interest. The settlement window closes at 21:30 UTC on 17 May, giving traders a narrow window to assess whether supplementary markets materialise before the match concludes.
This market settles from the official outcome published at https://www.cbf.com.br/futebol-brasileiro/competicoes/campeonato-brasileiro-serie-b. A proposer submits the final result to the UMA optimistic oracle on Polygon; the two-hour dispute window closes and payouts clear in USDC.
The mechanics for trading "Criciúma EC vs. AC Goianiense - More Markets" are the same as any other PolyGram sporting event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.
$0 in lifetime turnover and $13K of resting liquidity puts this market in the below the median by volume for sports contracts on PolyGram. Order-book depth is modest — expect a couple of cents of slippage on $1k+ trades.
The market has been open for under a month — fresh enough that information asymmetry remains a real factor.
Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.
Resolution is sourced from https://www.cbf.com.br/futebol-brasileiro/competicoes/campeonato-brasileiro-serie-b. Settlement is executed by the UMA optimistic oracle on Polygon, with a 2-hour dispute window before payouts clear.
This prediction market is scheduled to close on 17 May 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.
To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.
When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.
Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.
Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.
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