Baltimore Orioles vs. Boston Red Sox

Platform comparison

Market context

The Baltimore Orioles travel to Boston for a regular-season matchup against the Red Sox on 3 June at 6:45 PM ET. The market currently implies a 17% probability of an Orioles victory, reflecting Boston's stronger positioning in the AL East standings and recent form. Settlement occurs by 10 June 2026, with the standard MLB resolution framework: official final statistics determine the outcome, whilst postponements keep the market open and cancellations without make-up games resolve 50-50.

Historical matchups between these franchises show the Red Sox have maintained a slight edge in recent seasons, though the Orioles have emerged as competitive contenders in the division. The 17% probability aligns with typical market pricing for road underdogs facing established opponents, particularly when the home team holds superior win-loss records. Comparable single-game markets for mid-tier underdogs in similar circumstances typically settle in the 15–20% range, suggesting current pricing reflects standard baseline expectations rather than exceptional circumstances.

Traders monitoring this market should track roster updates and injury reports through to game time, particularly regarding starting pitchers and key position players. Weather conditions at Fenway Park—wind direction and temperature affecting ball carry—warrant attention for a June fixture. Recent performance trends, including each team's record in the preceding week and bullpen availability, influence algorithmic pricing models. Conditional order structures could capture late-breaking lineup announcements or weather shifts that might shift the implied probability meaningfully from current levels.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.

Resolution & payout

Resolution source: This market settles from the official publication at https://www.mlb.com/. A proposer submits the result to the UMA Optimistic Oracle on Polygon, the two-hour challenge window opens, and the smart contract pays out in USDC.

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.