Alex Bregman, Kristian Campbell and Triston Casas slugged two-run home runs and the Boston Red Sox strung together back-to-back victories for the first time this season, defeating the host Baltimore Orioles 8-4 on Thursday afternoon in the finale of a three-game series.

Bregman, who added a run-scoring double in the ninth, finished with three hits.

Cedric Mullins homered for the Orioles, who dropped back-to-back games for the first time this season.

Zack Kelly (1-0), the first of four relievers, was the winning pitcher with one inning of relief for the Red Sox. Boston starter Tanner Houck went four innings, giving up three runs on five hits with six strikeouts.

Baltimore starter Charlie Morton (0-2) took the loss, working five innings and allowing five runs on six hits with 10 strikeouts. He reached a double-figure strikeout total for the first time since August 2023, when he was pitching for the Atlanta Braves.

Morton struck out the side in the fifth, including two batters who had earlier homered off him. By then, much of the damage had been done.

Bregman smacked his first home run with the Red Sox in the first inning. Campbell connected for his second homer of the year in the second.

Baltimore trailed 4-2 through three innings, using Mullins’ second-inning homer and Jordan Westburg’s run-scoring single in the third. The blast from Mullins marked the first homer in three home games for the Orioles this season. Baltimore had gone three straight games without a home run.

After Jarren Duran’s sacrifice fly for Boston in the fourth was matched by Urias’ RBI single in the bottom of the inning, neither offense struck until Casas smacked his first home run this season in the seventh off reliever Keegan Akin for a 7-3 lead.

Campbell and Casas each had two hits and teammates Rafael Devers and Wilyer Abreu each scored two runs.