New York Yankees vs. Boston Red Sox

Platform comparison

Active sub-markets

Market context

The New York Yankees and Boston Red Sox face off at Fenway Park on Saturday, 27 June 2026, at 1:10 PM ET, with the Yankees needing to win the game to trigger a "YES" outcome in the prediction market. The Red Sox have already taken the first two games of this four-game series, defeating the Yankees six to one in the most recent contest, which has pushed the crowd-implied probability for a Yankees win down to just 11% [1].

Historical precedents in MLB interleague play show that when a team loses the opening two games of a short series, their probability of winning the third often drops below 15%, mirroring the current market sentiment [1]. Comparable cases from the 2024 and 2025 seasons reveal that teams trailing 0–2 in a four-game set rarely recover to win the third game unless a key pitcher is rested or a lineup change occurs, framing the 11% probability as a statistically grounded assessment rather than an outlier.

Traders should monitor Gerrit Cole’s performance, who allowed a season-high five runs in his last outing and is pitching at Fenway for the first time since 2022, as his form could drastically shift the game’s momentum [4]. Additionally, watch for any late-injury announcements or bullpen usage patterns from both teams, as these dependencies often act as catalysts for probability swings; ESPN’s live coverage will provide real-time updates on these developments [3]. The market’s accessibility is enhanced by regulatory frameworks allowing "no-KYC up to $1,500," meaning traders can participate without identity verification for stakes under this threshold, though German GlüStV and US CFTC rules still impose compliance obligations for larger volumes.

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

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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.

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 does it cost to trade on PolyGram?

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

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.

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.