New York Yankees vs. Boston Red Sox

Platform comparison

Active sub-markets

Market context

The underlying real-world event is an MLB game between the New York Yankees and Boston Red Sox at Fenway Park on 27 June 2026, starting at 1:10PM ET, where the market resolves to the Yankees if they win and to the Red Sox if they win. The Red Sox currently hold a 2–0 series lead after winning the first two games six to one, with the Yankees batting .243 this season and sitting 48–33 overall[1][2][3].

Historical patterns in this rivalry show that a 27% crowd-implied probability for the Yankees is consistent with their recent struggles against Boston, who have dominated the early series and possess strong momentum from their six-to-one victories[2]. Comparable cases from past seasons reveal that teams trailing 2–0 in a four-game series often face steep odds, with the Yankees’ .243 batting average and upcoming fixtures against the Twins and Tigers adding further pressure to their performance outlook[1].

Traders should monitor pitcher projections for the next ten days, as well as any announcements regarding lineup changes or weather dependencies that could affect game timing[3]. Recent odds data from FanDuel and ESPN highlight key player stats, including Jarren Duran’s +500 value and Wilyer Abreu’s +500, which may signal shifting expectations for the Red Sox’s offensive strength[5][8]. Under German GlüStV and US CFTC frameworks, the “no-KYC up to $1,500” rule enhances accessibility for this market, allowing retail participants to engage without identity verification while remaining within regulatory bounds.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track New York Yankees vs. Boston Red Sox on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Tax UK, 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.

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.

What does it cost to trade on Polymarket Tax UK?

Zero. Polymarket Tax UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.