New York Yankees vs. Boston Red Sox

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Active sub-markets

Market context

The New York Yankees face the Boston Red Sox at Fenway Park on 27 June 2026 for a 1:10 PM ET MLB matchup, with the Yankees currently favoured to win. Despite the Yankees’ superior season record of 48–33 compared to the Red Sox’s 34–46, the prediction market shows a 0% implied probability for a Yankees victory, a stark divergence from sportsbook consensus lines that price the Yankees at –120 odds and analysts who expect a Yankees win based on recent form and head-to-head dominance.

Historically, such market mispricings have occurred when prediction markets lag behind live sportsbook adjustments, particularly in high-profile rivalry games where sentiment shifts rapidly after a single loss; for instance, the Red Sox’s 6–1 victory over the Yankees the previous day (3 June 26) triggered a temporary spike in Red Sox odds, yet the Yankees remain the stronger team over the last ten games with a 48–34 season win total and a 39–43 against-the-spread record. Traders should monitor late-injury announcements for key players like Aaron Judge, whose 2 HR and 500 AVG performance in the last game could sway outcomes, as well as any weather updates for Fenway Park, given the game’s evening start time and the potential for rain delays that could postpone settlement beyond the 4 July 2026 window. Recent coverage from ESPN confirms Judge’s strong batting form, while VegasInsider notes the consensus moneyline remains heavily skewed toward the Yankees despite the prediction market’s zero probability.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote (Polymarket), 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

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.

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?

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