Sports

Trade: Boston Red Sox vs. Tampa Bay Rays

Opened · Settles

Resolution criteria on PolyGram: In the upcoming MLB game between the Boston Red Sox and Tampa Bay Rays, scheduled for June 8 at 6:40PM ET: This market will resolve to "Boston Red Sox" if the Boston Red Sox 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.

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
$52
Total Volume
—
24h Volume
—
Open Interest
—
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Market outcomes

Boston Red Sox vs. Tampa Bay Rays 50% YES50% NO
NRFI 50% YES50% NO

Market context

The Boston Red Sox face the Tampa Bay Rays on 8 June at 6:40 PM ET in an American League East matchup. The current order book on Polymarket reflects a 50–50 split, indicating genuine uncertainty amongst traders regarding which team will secure the victory. Settlement occurs on 15 June, providing a one-week window for the game to be completed and official statistics confirmed.

Historical matchups between these franchises offer limited predictive power for individual games, though seasonal records and recent form typically anchor probability assessments. The Red Sox and Rays have competed in the AL East for decades, with neither team holding a decisive structural advantage in single-game outcomes. Traders should note that regular-season divisional games often reflect broader team momentum, injury status, and pitching availability rather than historical head-to-head records. Current standings and recent performance streaks as of early June will be material to how the probability drifts from the current 50–50 mark.

Key catalysts include confirmed starting pitcher announcements, which typically arrive 24–48 hours before game time and can shift implied probabilities substantially depending on recent performance and injury history. Weather conditions at Fenway Park or Tropicana Field may also influence trading activity, particularly if rain threatens postponement. Any roster moves or injury updates affecting either team's lineup or bullpen in the days leading up to 8 June could trigger repricing on the order book. Traders should monitor official MLB communications and team injury reports through 7 June.

Wikipedia Context

  • Boston Red Sox
    Boston Red Sox

    The Boston Red Sox are an American professional baseball team based in Boston. The Red Sox compete in Major League Baseball (MLB) as a member club of the American League (AL) East Division. Founded in 1901 as one of the American League's eight charter franchises, the team's home ballpark has been Fenway Park since 1912. The "Red Sox" name was chosen by the t

  • Boston Red Sox minor league players
    Boston Red Sox minor league players

    Below is a partial list of players in the Boston Red Sox minor league organization. Players individually listed here have not yet played in Major League Baseball (MLB), but have reached an advanced level of achievement or notoriety. Some notable players in the minor leagues may have their own profile pages, such as first-round draft picks. Note that anyone w

  • Boston Red Sox all-time roster

    The following is a list of players, past and present, who have appeared in at least one competitive game for the Boston Red Sox American League franchise, known previously as the Boston Americans (1901–07).

  • Boston Red Sox Radio Network

    The Boston Red Sox Radio Network is an American radio network composed of 54 radio stations which carry English language coverage of the Boston Red Sox, a professional baseball team in Major League Baseball (MLB). Lawrence, Massachusetts station WEEI-FM (93.7 FM), which serves Boston and the Greater Boston area, serves as the network's Flagship. The network

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 "Boston Red Sox vs. Tampa Bay Rays" 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. Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
  2. Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
  3. 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.
  4. 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.
  5. 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.
  6. 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 $52 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.

See the full prediction-market glossary →

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 15 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 "Boston Red Sox vs. Tampa Bay Rays"?

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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