Pronóstico: New York Yankees vs. Boston Red Sox

Platform comparison

Active sub-markets

Market context

The New York Yankees and Boston Red Sox faced each other in a Major League Baseball game at Fenway Park on 25 June 2026, with the Red Sox winning 6–3. This result marked Boston’s first home victory against the Yankees this season, driven by Caleb Durbin’s two-run homer in the fifth inning and a solid outing from starter Connelly Early. The Yankees, despite holding a 2–0 lead early, were unable to sustain their momentum, leaving runners loaded in key innings.

Historically, such a 0% crowd-implied probability for the Yankees in an upcoming rematch is unusual given their superior form (48–32) compared to the Red Sox (33–46). However, the immediate prior result—where the Red Sox broke a tie and dominated late—has sharply reset expectations. Comparable cases from recent seasons show that after a single-game upset by a lower-ranked team, markets often overcorrect, especially when key injuries or lineup changes follow. The Red Sox placed infielder Marcelo Mayer on the injured list with a left forearm injury just before the game, yet still managed to win, suggesting resilience that may not be fully priced in.

Traders should monitor any updates on the Yankees’ pitching rotation and whether the Red Sox adjust their batting order ahead of the next meeting. ESPN’s game recap notes that Red Sox closer Aroldis Chapman secured his 15th save, indicating strong late-inning control. With the settlement window ending 2 July 2026, any postponement or cancellation will keep the market open until completion. Watch for official MLB announcements on player availability, as even minor lineup tweaks could shift the implied probability significantly. [1][3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Pronóstico: 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 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.

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 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.