Boston Red Sox at Seattle Mariners: Final Score & Recap
Line Score
| Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | R | H | E |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BOS | 0 | 0 | 0 | 2 | 0 | 3 | 0 | 0 | 0 | 5 | 6 | 1 |
| SEA | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 |
The Story
The Boston Red Sox handed the Seattle Mariners a 5-1 defeat at T-Mobile Park on June 20, 2026, steadily erasing what the DiamondIQ model had pegged as a 62 percent pre-game home win probability for Seattle and running it to zero by the final out. Boston scattered its offense across two pivotal frames, plating two runs in the fourth and three more in the sixth, while holding the Mariners to just two hits throughout the night. The Red Sox did their damage with efficiency, finishing with six hits of their own despite committing one error, and the Mariners never found an answer offensively against a Boston pitching staff that kept the game firmly in hand.
The decisive sequence began in the fourth inning when Wilyer Abreu launched a home run off Emerson Hancock, a swing that shifted win probability 19.8 percent in Boston's favor and gave the Red Sox a lead they never relinquished. Hancock kept the margin at two into the fifth, aided in part by a Marcelo Mayer groundout into a double play that swung win probability 8.1 percent back toward Seattle, but the Red Sox broke things open in the sixth against reliever José A. Ferrer. A Caleb Durbin single added 19.3 percent win probability, and though a Jarren Duran forceout momentarily absorbed 7.9 percent of that gain, a subsequent Marcelo Mayer single kept the inning alive and Boston tacked on three total runs in the frame.
Abreu finished as the game's top offensive contributor with a WPA of plus-24.8 percent and an RE24 of plus-1.5, while Durbin was close behind at plus-21.9 percent WPA and plus-1.7 RE24, his single proving the other signature blow of the night. Willson Contreras added a quieter plus-3.2 percent WPA. On the mound, Connelly Early was the clear standout, posting a plus-24.3 percent WPA to lead all pitchers, with Tyron Guerrero contributing plus-3.6 percent and Garrett Whitlock adding plus-1.2 percent in support. The DiamondIQ model had favored Seattle entering the game, but Boston's execution in the middle innings made that pre-game lean irrelevant well before the final out.