New York Yankees vs. Boston Red Sox

Platform comparison

Active sub-markets

Market context

The upcoming MLB contest between the New York Yankees and Boston Red Sox, scheduled for 1:10PM ET on June 27, presents a sharp divergence between traditional betting lines and the current crowd-implied probability of 7% for a Yankees victory. While standard moneylines across FanDuel and other major books price the Yankees at approximately -118, implying a 54% win chance, the prediction market’s 7% figure suggests a highly specific, perhaps conditional, outcome or a mispricing that power-users must evaluate programmatically. Historically, such discrepancies in divisional matchups often stem from overlooked variables like starting pitcher fatigue or defensive injuries, rather than a fundamental shift in team strength.

A trader approaching this programmatically should monitor real-time roster updates and the confirmed starting pitcher for the Yankees, as Cole’s 12.04 ERA at Fenway Park remains the critical angle for this series finale, according to recent analysis from the Cincinnati Enquirer. The under is also a strong dependency, with a 13-11-1 record when the Yankees face divisional opponents, and Boston’s poor 13-25 against-the-spread performance at home further complicates the win probability. Any delay in the game or a change in the starting rotation could instantly invalidate the 7% assumption, requiring conditional orders to adjust exposure based on live feeds from official MLB statistics.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

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

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.