Resolution criteria on PolyGram: In the upcoming Brazil Serie B game between AC Goianiense and São Bernardo FC, scheduled for May 24, 2026 at 3:00 PM ET: This event contains halftime result markets for home, draw, and away outcomes within the first 45 minutes of regular play plus stoppage time.
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 | 49% YES | 52% NO |
| Draw | 48% YES | 52% NO |
| São Bernardo FC | 48% YES | 52% NO |
AC Goianiense will host São Bernardo FC in a Serie B fixture on 24 May 2026, with settlement determined by the halftime scoreline after 45 minutes plus stoppage time. The current orderbook on Polymarket reflects a 49% implied probability for a home win at the interval, suggesting near-parity between a Goianiense advantage and alternative outcomes (draw or away lead).
Serie B halftime markets typically exhibit volatility around team form and recent scoring patterns. Goianiense, as the established higher-division club, would ordinarily carry favourability in early-match scenarios, yet the probability sitting at near-even suggests the market perceives meaningful uncertainty. Historical precedent indicates that halftime results in Brazilian second-tier football correlate with squad depth and pressing intensity in opening phases; teams with stronger fitness profiles and aggressive tactical setups tend to establish leads by the interval more consistently than their counterparts.
Traders should monitor team news releases and lineup confirmations in the days preceding the match, particularly regarding key attacking or defensive personnel. Goianiense's recent form in Serie B and any injury updates to São Bernardo's starting eleven will inform whether the current 49% reflects genuine competitive balance or represents mispricing relative to underlying squad quality. Fixture congestion—whether either side has played midweek—may also influence early-game intensity and pressing patterns that determine halftime outcomes. The settlement window closes at 19:00 UTC on match day, allowing approximately four hours post-kickoff for final orderbook adjustments.
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 "AC Goianiense vs. São Bernardo FC - Halftime Result" 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 $44 of resting liquidity puts this market in the below the median by volume for sports contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.
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 24 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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