Resolution criteria on PolyGram: In the upcoming Brazil Série A game between EC Vitória and SC Internacional, scheduled for May 23, 2026 at 4:00 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
| EC Vitória | 49% YES | 52% NO |
| Draw | 49% YES | 52% NO |
| SC Internacional | 49% YES | 51% NO |
EC Vitória will host SC Internacional in a Brazil Série A fixture on 23 May 2026 at 4:00 PM ET. The halftime result market settles on the outcome after 45 minutes of regular play plus stoppage time, with three possible outcomes: a home win, a draw, or an away victory. The current Polymarket order book is pricing a Vitória halftime win at 49% implied probability, suggesting near-parity between home advantage and Internacional's away capability over the opening half.
Halftime markets in Brazilian top-flight football typically reflect a compressed version of full-match dynamics, where home sides convert their advantage into early pressure but away teams often remain compact defensively. Historical data from Série A halftime results shows that home teams achieve roughly 45–50% halftime wins when facing mid-table or upper-mid-table opposition, with draws accounting for 25–30% of outcomes. Internacional's recent form and Vitória's home record will be material; teams with strong pressing systems tend to generate halftime leads, whilst those relying on second-half adjustments rarely establish commanding positions by the interval.
Traders should monitor team news releases up to kickoff, particularly injury confirmations for key attacking or defensive personnel. Vitória's recent fixture congestion and Internacional's travel logistics from Porto Alegre may influence early-match intensity. Weather conditions in Salvador on match day could affect ball control and passing accuracy in the opening 45 minutes. Pre-match odds movements across major sportsbooks will signal late shifts in market consensus as lineups are confirmed.
This market settles from the official outcome published at https://www.cbf.com.br/futebol-brasileiro/competicoes/campeonato-brasileiro-serie-a. 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 "EC Vitória vs. SC Internacional - 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 $41 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-a. 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 23 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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