Trade the outcome below — no house edge, instant USDC settlement on Polygon
Resolution criteria on PolyGram: In the upcoming MLB game between the Los Angeles Angels and Tampa Bay Rays, scheduled for May 31 at 1:40PM ET: This market will resolve to "Los Angeles Angels" if the Los Angeles Angels win the game. This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays 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.
Real-money prediction markets aggregate live odds from thousands of traders, surfacing a sharper probability than any single forecast. Current odds favour the NO side at 36%, making this a coinflip market with 7 days to resolution, well inside the window where catalysts move price most, backed by $789K of resting liquidity.
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
| Los Angeles Angels vs. Tampa Bay Rays | 36% YES | 65% NO |
| NRFI | 47% YES | 53% NO |
| Spread -1.5 | 48% YES | 53% NO |
| O/U 8.5 | 45% YES | 56% NO |
| O/U 10.5 | 28% YES | 72% NO |
| O/U 11.5 | 21% YES | 80% NO |
| O/U 5.5 | 74% YES | 27% NO |
| O/U 6.5 | 65% YES | 36% NO |
The Los Angeles Angels face the Tampa Bay Rays in a regular-season MLB matchup scheduled for 31 May at 1:40 PM ET. The current order book on Polymarket reflects a 37% implied probability for an Angels victory, suggesting market participants favour the Rays as the more likely winner. This probability has formed through live trading activity and represents the marginal price at which the last transaction occurred.
Historically, matchups between these franchises show relatively balanced outcomes, though the Rays have maintained stronger recent performance metrics. The Angels' 2024 season has been marked by inconsistency, whilst Tampa Bay has demonstrated more reliable pitching depth and defensive execution. When assessing the 37% probability, traders should consider that it sits below the Angels' typical win probability in neutral contexts, indicating the market is pricing in specific disadvantages for Los Angeles in this particular fixture.
Key variables affecting settlement include starting pitcher assignments, which were not finalised at the time this market opened. Injury status updates, particularly for either team's offensive core, could shift the probability materially. Weather conditions at the scheduled venue and any last-minute roster adjustments warrant monitoring through official MLB announcements. The settlement window extends to 7 June 2026, providing adequate time for game completion or rescheduling should postponement occur. Traders should verify final lineups and conditions approximately two hours before first pitch, as late-breaking information frequently influences market repricing.
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.
For this market, the resolution date is 7 June 2026. A UMA proposer can submit the outcome from that moment; the two-hour dispute window closes at , and assuming no counter-claim is staked, winning USDC clears to trader balances by approximately .
If a dispute is filed inside the two-hour window, the outcome escalates to UMA token-holder voting, which extends settlement by roughly 48 hours. Because this market resolves from a publicly verifiable feed (https://www.mlb.com/), the probability of dispute is materially lower than the overall 0.5% PolyGram baseline — most disputes occur on markets with ambiguous wording or non-public resolution sources.
Withdrawal pace from your PolyGram balance is non-custodial and immediate — once payout clears, funds are yours to send to any Polygon wallet you control. Funds clear directly to your in-app USDC balance on Polygon. Withdrawals are non-custodial: send to any address you control, typical confirmation under 30 seconds, gas paid in USDC if you'd rather not hold MATIC.
Minimum order size on PolyGram is $1.00, with no maximum cap aside from available book depth. Orders route into Polymarket's on-chain CLOB on Polygon; the matching engine pairs YES buyers with NO buyers atomically — every executed trade is settled on-chain with no counterparty risk. For "Los Angeles Angels vs. Tampa Bay Rays", order-book behaviour for this market reflects the underlying volatility of the outcome — patient limit orders typically fill closer to mid than market orders.
The trade ticket includes a slippage box (default 2%, configurable 0.1%-10%) that caps the worst-case entry price. Your maximum loss is your stake — winning YES (or NO) shares pay $1.00 each at resolution. With this market's current book depth ($789K of resting liquidity), a $500 order should fill with single-cent slippage at the displayed mid-price.
PolyGram charges 0% house edge — no spread mark-up, no rake on winnings, no withdrawal fees beyond network gas. The platform earns exclusively from optional features (copy-trade boosts, advanced order types, the yield vault on idle USDC); the trading surface itself is at-cost.
The mechanics for trading "Los Angeles Angels vs. Tampa Bay Rays" are the same as any other PolyGram 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.
$66K in lifetime turnover and $789K of resting liquidity puts this market in the above the median by volume for games contracts on PolyGram. Order-book depth is exceptional — among the deepest order books in the category.
Last 24 hours alone saw $66K 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 7 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. For "Los Angeles Angels vs. Tampa Bay Rays", the considerations above apply directly — Trade size should reflect the binary nature of the payoff: even a 70% probability event resolves NO 30% of the time, so any single position can lose 100% of staked capital.
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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