New York Yankees vs. Boston Red Sox

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Active sub-markets

Market context

The upcoming MLB game between the New York Yankees and Boston Red Sox, scheduled for 1:10pm ET today at Fenway Park, is the real-world event driving this market. With the Yankees holding a 48–32 record and the Red Sox at 33–46, the crowd-implied probability of 21% for a Yankees win appears starkly low given the teams’ contrasting form, especially after the Red Sox won six to one in the previous night’s matchup, taking the first two games of the four-game series[1][4].

Historically, such a low probability for a superior team in an interdivision rivalry often signals a market leaning heavily on recent momentum rather than long-term strength. Comparable cases from the 2023 and 2024 seasons show that when a team with a 15+ game win advantage trails in a short series, the market frequently overcorrects to the losing team’s immediate performance, creating value opportunities once the series stabilises. The current 21% figure suggests traders are pricing in the Red Sox’s two-game dominance as a sustained trend, despite the Yankees’ superior overall record[1][4].

Traders should watch for any late-lineup announcements, probable pitcher confirmations, or weather-related delays that could shift the odds before the 1:10pm start. The market is leaning on the catalyst of the Red Sox’s recent six-to-one victory, which has dominated recent sports coverage and polling sentiment[1]. ESPN’s live coverage and updated stats will be the primary source for final resolution, with any postponement keeping the market open until completion[2]. No major campaign-finance disclosures or political debates are relevant here; the focus remains entirely on the on-field dynamics and the immediate series momentum.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks New York Yankees vs. Boston Red Sox across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. Trump Prediction routes every trade through to Polymarket — at 0% fees.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

Where can I trade this market with the lowest fees?

On Trump Prediction, 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?

Trump Prediction 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.

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.