Resolution criteria on PolyGram: In the upcoming MLB game between the San Francisco Giants and Chicago Cubs, scheduled for June 6 at 2:20PM ET: This market will resolve to "San Francisco Giants" if the San Francisco Giants win the game. This market will resolve to "Chicago Cubs" if the Chicago Cubs win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers.
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
| San Francisco Giants vs. Chicago Cubs | 50% YES | 50% NO |
| NRFI | 51% YES | 50% NO |
The San Francisco Giants face the Chicago Cubs on 6 June at 2:20PM ET in an MLB regular-season matchup. The Polymarket order book currently reflects a 50-50 split between the two outcomes, indicating no clear consensus among traders on either side. This even probability suggests the market views both teams as evenly matched for this particular fixture, with neither side commanding a meaningful edge in the available information set.
Historical matchups between these National League rivals provide limited predictive value for individual games, though seasonal trends matter considerably. The Giants and Cubs have played each other consistently since 1903, but single-game outcomes depend heavily on pitching matchups, recent form, and injury status rather than historical head-to-head records. Teams' current win-loss records, bullpen availability, and whether either side is in a winning or losing streak typically drive sharper probability movements in the days before game time.
Traders should monitor roster announcements through to settlement, particularly any late injury disclosures or pitching changes that could shift the matchup calculus. Weather conditions at the venue and travel schedules—the Cubs travel from Chicago to face the Giants in San Francisco—occasionally influence game outcomes. Recent performance data, including each team's record in the fortnight preceding 6 June, will likely crystallise the probability away from the current midpoint as game time approaches and more information enters the market.
San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 826,079 in 2025. Among U.S. cities with a population of 200,000 or more, San Francisco is ranked first by per capita income, second by population density, and sixth by aggregate i
The San Francisco Bay Area is a region of California surrounding and including San Francisco Bay, and anchored by the cities of Oakland, San Francisco, and San Jose. It is commonly known as the Bay Area or simply the Bay. The Association of Bay Area Governments defines the Bay Area as including the nine counties that border the estuaries of San Francisco Bay
The San Francisco Giants are an American professional baseball team based in San Francisco. The Giants compete in Major League Baseball (MLB) as a member club of the National League (NL) West Division. Founded in 1883 as the New York Gothams, the team was renamed the New York Giants three years later, eventually relocating from New York City to San Francisco
The San Francisco 49ers are a professional American football team based in the San Francisco Bay Area. The 49ers compete in the National Football League (NFL) as a member of the National Football Conference (NFC) West division. The team plays its home games at Levi's Stadium in Santa Clara, California, located 38 miles (61 km) southeast of San Francisco. The
This market settles from the official outcome published at https://www.mlb.com/. 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 "San Francisco Giants vs. Chicago Cubs" 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 $20K 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.mlb.com/. 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 13 June 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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