HOUSTON — Alex Bregman homered against his former team for a second straight game and Carlos Narváez added a three-run shot to lead the Boston Red Sox to a 14-1 win over the Houston Astros on Tuesday night.

Dustin May (7-8) scattered five singles across six scoreless innings and struck out eight in his second start since a trade from the Dodgers.

The loss drops the Astros into a tie with Seattle for the AL West lead after the Mariners beat the Orioles 1-0 for their eighth consecutive win Tuesday.

Bregman, who is playing in Houston as a visitor for the first time, hit another two-run home run Tuesday night after hitting one in his first at-bat in Monday night’s 7-6 loss. He spent his first nine seasons with the Astros before signing with the Red Sox this offseason.

His homer came after Narváez slugged a three-run shot as Boston scored five runs with two outs in the sixth to push its lead to 7-0.

Houston starter Spencer Arrighetti (1-3) struggled with command in his second start since missing four months because of a broken right thumb. He allowed just one hit and two runs, but walked a career-high five in five innings.

The bases were loaded with one out in the third when Arrighetti plunked Trevor Story on the hand to make it 1-0. The Red Sox made it 2-0 when Roman Anthony, who hit a solo homer in the eighth, scored on a sacrifice fly by Masataka Yoshida.

Wilyer Abreu hit an RBI double in the seventh and a two-run double in Boston’s four-run eighth that made it 12-0.

The Red Sox added two runs in the ninth with outfielder Chas McCormick on the mound.

Key moment

The home run by Narváez in the sixth inning gave Boston a 5-0 lead.

Key stat

Bregman’s home run Tuesday was his 96th in the regular season at Daikin Park.

Up next

Houston RHP Hunter Brown (9-5, 2.51 ERA) opposes RHP Walker Buehler (7-6, 5.40) in the series finale Wednesday night.