Resolution criteria on PolyGram: In the upcoming MLB game between the Colorado Rockies and Philadelphia Phillies, scheduled for May 8 at 6:40PM ET: This market will resolve to "Colorado Rockies" if the Colorado Rockies win the game. This market will resolve to "Philadelphia Phillies" if the Philadelphia Phillies 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
| Colorado Rockies vs. Philadelphia Phillies | 100% YES | 0% NO |
| NRFI | 100% YES | 0% NO |
| O/U 6.5 | — | |
| O/U 5.5 | — | |
| Spread -1.5 | — | |
| O/U 10.5 | — | |
| Spread -2.5 | — | |
| Spread -5.5 | — | |
The Colorado Rockies travel to Philadelphia to face the Phillies on 8 May at 6:40PM ET in a regular-season MLB matchup. The current order book on Polymarket reflects a 40% implied probability for a Rockies victory, pricing them as clear underdogs in this fixture. Settlement occurs by 15 May, allowing for postponement contingencies under standard baseball protocols.
Historical matchups between these franchises show the Phillies have maintained a competitive edge in recent seasons, though Coors Field advantage typically inflates Colorado's home win rates. The Rockies' road performance has historically lagged their home record substantially—a pattern relevant here given this contest occurs in Philadelphia. The Phillies' recent postseason appearances and roster stability contrast with Colorado's rebuilding trajectory, factors that typically compress underdog odds in their favour.
Traders should monitor pitching assignments in the days preceding the fixture, as rotation changes materially affect win probability. Weather conditions at Citizens Bank Park merit attention, particularly wind direction affecting fly ball carry. Recent team form—Colorado's record in their preceding ten games versus Philadelphia's current winning streak—will likely shift the order book closer to game time. Any roster announcements regarding key position players or bullpen availability could trigger repricing. The settlement window's extension to 22 May accommodates potential rain delays common in early May fixtures in the Northeast.
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 "Colorado Rockies vs. Philadelphia Phillies" 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.
$1.3M in lifetime turnover and $1.2M of resting liquidity puts this market in the top 2% by volume for sports contracts on PolyGram. Order-book depth is exceptional — among the deepest order books in the category.
Last 24 hours alone saw $1.3M in turnover, well above the lifetime daily-average for this market — a clear sign of news catalysing trader activity right now.
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 15 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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