Trade: St. Louis Cardinals vs. New York Mets
Resolution criteria on PolyGram: In the upcoming MLB game between the St. Louis Cardinals and New York Mets, scheduled for June 9 at 7:10PM ET: This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game. This market will resolve to "New York Mets" if the New York Mets 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.
- Liquidity
- $45
- Total Volume
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- 24h Volume
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- Open Interest
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Market outcomes
| St. Louis Cardinals vs. New York Mets | 50% YES | 50% NO |
| NRFI | 50% YES | 50% NO |
Market context
The St. Louis Cardinals travel to face the New York Mets on 9 June at 7:10 PM ET in a regular-season MLB matchup. The current order book on Polymarket reflects a 50–50 split, indicating traders see neither side as favoured. This even probability typically emerges when both teams carry comparable recent form, injury status, and pitching matchups, with no clear information asymmetry driving the market in either direction.
Historical context suggests that regular-season games between these franchises rarely settle at exact parity unless underlying conditions genuinely favour neither team. The Cardinals and Mets occupy different divisional standings and have distinct seasonal trajectories; a 50–50 split usually signals either genuine uncertainty about starting pitchers or recent roster changes that have neutralised traditional advantages. Comparable June matchups between mid-tier teams often see probability shifts of 5–10 percentage points once lineups and confirmed pitching assignments are announced.
Key catalysts for price movement include official confirmation of starting pitchers (typically announced 24–48 hours before first pitch), any late-breaking injuries to position players or bullpen arms, and weather conditions at Citi Field that might favour one team's offensive profile. Recent team performance trends—win-loss records over the preceding two weeks—also drive trader positioning. The settlement window extends to 16 June, allowing for postponements or rescheduling should weather or other factors delay the fixture beyond 9 June.
Wikipedia Context
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St. Louis Cardinals (NFL)From 1960 to 1987, the professional American football team now known as the Arizona Cardinals played in St. Louis, Missouri, as the St. Louis Cardinals.
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St. Louis Cardinals award winners and league leaders
The St. Louis Cardinals, a professional baseball franchise based in St. Louis, Missouri, compete in the National League (NL) of Major League Baseball (MLB). Before joining the NL in 1892, they were also a charter member of the American Association (AA) from 1882 to 1891. Although St. Louis has been the Cardinals' home city for the franchise's entire exist
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St. Louis CardinalsThe St. Louis Cardinals are an American professional baseball team based in St. Louis. The Cardinals compete in Major League Baseball (MLB) as a member club of the National League (NL) Central Division. Since the 2006 season, the Cardinals have played their home games at Busch Stadium in downtown St. Louis. One of the nation's oldest and most successful prof
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List of St. Louis Cardinals team records
The St. Louis Cardinals, a professional baseball franchise based in St. Louis, Missouri, compete in the National League (NL) of Major League Baseball (MLB) since 1892. Before joining the NL, they were also a charter member of the American Association (AA) from 1882 to 1891. Although St. Louis has been the Cardinals' home city for the franchise's entire exi
Resolution source
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.
How to trade this market step by step
The mechanics for trading "St. Louis Cardinals vs. New York Mets" 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.
- Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
- Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
- Pick a side. Buy YES if you believe the event will happen; buy NO if you think it won't. The current YES price reflects the market's collective probability.
- Size your position. If you stake 100 USDC at 50% YES, you'll receive shares that pay $200 if YES resolves true — a 100% gross return. If NO resolves, your shares are worth $0.
- Set risk controls (optional). Stop-loss, take-profit, and limit-order types all supported. Use the trade ticket's slippage box to cap your maximum entry price.
- Wait for resolution. When the event resolves on-chain via the UMA optimistic oracle, the winning side settles to 100¢ automatically and USDC hits your balance within seconds. Withdrawable to any wallet you control.
How active is this market?
$0 in lifetime turnover and $45 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.
Key terms
- YES / NO share
- A binary outcome token that pays $1.00 if the underlying claim resolves true (YES) or false (NO), and $0 otherwise. The market price between 0¢ and 100¢ is the implied probability.
- CLOB
- Central limit order book. The matching engine that pairs YES buyers with NO buyers (effectively the same trade). Polymarket's CLOB on Polygon executes trades on-chain via the conditional-tokens framework.
- Liquidity
- USDC capital sitting in resting limit orders inside the order book. Deeper liquidity means smaller slippage on large trades and a tighter bid-ask spread.
- UMA optimistic oracle
- The on-chain dispute system that settles each Polymarket market. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution.
- Slippage
- The difference between the displayed mid-price and your fill price. Affects market orders most; limit orders avoid slippage but may take time to fill.
- Conditional token
- ERC-1155 outcome share issued by Gnosis Conditional Tokens on Polygon. The token type that resolves to $1.00 or $0.00 at settlement.
Frequently asked questions
How does this market resolve?
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.
When does this market close?
This prediction market is scheduled to close on 16 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.
How can I trade on "St. Louis Cardinals vs. New York Mets"?
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.
What happens when the market resolves?
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.
Risk and regulatory note
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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