The Boston Red Sox defeated the Seattle Mariners 9-8 in 10 innings at Fenway Park, turning a back-and-forth game into a narrow win with the decisive run in the 10th. Seattle erased a 5-2 deficit with four runs in the sixth and added another in the seventh, but Boston recovered late after allowing the Mariners to seize control. Randy Arozarena drove Seattle’s offense with four hits, a home run, four RBI and three runs, yet Boston’s balanced lineup produced the final answer.

Arozarena was the game’s most dangerous hitter, going 4-for-5 and reaching base in every at-bat while supplying the middle-order damage Seattle needed. Dominic Canzone added two hits and two RBI, and the Mariners’ six-run burst from the sixth through the seventh transformed the game from a Boston advantage into an 8-5 Seattle lead. George Kirby lasted five innings and allowed five earned runs, while Andres Munoz provided 1.1 scoreless innings with three strikeouts to keep Seattle in position to win.

Boston’s response came from its run-producing bats. Ceddanne Rafaela went 2-for-4 with three RBI, Trevor Story went 2-for-5 with three RBI, and Jarren Duran added a two-run home run. Payton Tolle worked 5.2 innings with six strikeouts and limited the damage well enough to give Boston a platform, though he allowed four earned runs. The Red Sox tied the game with two runs in the eighth, then settled the contest with one run in the 10th, completing a rally that preserved the win despite Seattle’s superior offensive night.

Boston improves to 75-63 and gains ground through its ability to generate timely production across the lineup, especially after surrendering a four-run sixth inning. Seattle falls to 64-74 despite one of its strongest individual offensive performances of the season, and the loss underscores how costly it is to let a late lead disappear. The Mariners have the lineup to pressure opponents, but Boston showed the more reliable response in the final innings.