Seattle Mariners defeat Boston Red Sox in game at Fenway Park

The Seattle Mariners defeated the Boston Red Sox 9-6 on September 1, 2026, at Fenway Park. Randy Arozarena provided a key offensive contribution for the Mariners by hitting a three-run home run in the second inning. The victory occurred during a game that also served to welcome prospect Lazaro Montes to the major leagues. Seattle maintains a 65-74 record on the season following the result in Boston. The game featured notable individual performances, with Arozarena recording a.12 WPA, while Carlos Vargas and Julio Rodríguez both posted a -.02 WPA. Coverage of the game appeared in conjunction with the release of a new team-affiliated mobile application.

• 2:09 AMYahoo Sports — 65-74: Chart