Resolution criteria on PolyGram: In the upcoming MLB game between the Athletics and Los Angeles Angels, scheduled for May 18 at 9:38PM ET: This market will resolve to "Athletics" if the Athletics win the game. This market will resolve to "Los Angeles Angels" if the Los Angeles Angels 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
| Athletics vs. Los Angeles Angels | 61% YES | 39% NO |
| NRFI | 55% YES | 45% NO |
The Oakland Athletics travel to face the Los Angeles Angels on 18 May at 9:38 PM ET in an MLB regular season matchup. The current order book on Polymarket reflects a 61% implied probability for an Athletics victory, suggesting the market views Oakland as a modest favourite for this contest.
The Angels have historically struggled against the Athletics in recent seasons, though both franchises have experienced significant roster turnover. Oakland's 2024 campaign has been marked by rebuilding efforts following the team's relocation announcement, whilst Los Angeles has invested in veteran talent to compete in the AL West. Head-to-head records between these clubs provide limited predictive value given the substantial changes to both rosters, making recent performance trends and current-season form more relevant indicators than historical matchups.
Key variables affecting the probability include starting pitcher assignments, which typically influence single-game outcomes substantially. Injury status updates for key position players, particularly in the Angels' lineup, could shift market pricing ahead of first pitch. Weather conditions at Angel Stadium—temperature and wind patterns—may favour either team's offensive approach. Recent form matters considerably; traders should monitor both teams' performance in the five days preceding the fixture, along with any late-breaking roster moves or managerial decisions that could affect game strategy or player availability.
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 "Athletics vs. Los Angeles Angels" 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 $18K 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 26 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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