The Seattle Mariners defeated the Boston Red Sox 10-6, driven by strong performances from Jorge Polanco and Dylan Moore. Polanco contributed a solo home run and an RBI double, while Moore drove in three runs with a bases-loaded double during a five-run fifth inning. The Mariners capitalized on Boston's three defensive errors, which frustrated the home crowd and allowed Seattle to maintain an offensive surge, scoring six or more runs in their last five games. Starting pitcher Luis Castillo held the Red Sox to three runs over six innings, despite Rafael Devers hitting a three-run homer for Boston. This win marks the Mariners' fourth victory in five games, as they look to improve their season performance. Boston's manager Alex Cora acknowledged the team's defensive shortcomings, particularly in support of new pitcher James Paxton, who struggled in his outing.