Boston Jarren Duran celebrate after hitting a solo home run during the Red Sox’s 9-4 win over Seattle on Tuesday at Fenway Park in Boston. Charles Krupa/Associated Press

BOSTON — Red Sox center fielder Jarren Duran’s night started out pretty poorly. He finished it off by contributing to a slump-breaking victory.

After striking out twice and misplaying a line drive into a triple, Duran homered, singled in a run and stole a base to help Boston snap a four-game losing streak by beating the Seattle Mariners 9-4 on Tuesday night.

“It’s baseball. I punched out the first two at-bats and I was like, ‘I’ve got to flush it,'” said Duran, who is batting .351 and already matched his career high of three home runs. “Just pick up my boys and just think about the guys. Like, it’s not all about me.”

Masataka Yoshida doubled, tripled, scored on a wild pitch and drove in three runs for Boston. Justin Turner and Triston Casas also homered for the Red Sox, who were swept by the last-place St. Louis Cardinals and lost the series opener to Seattle.

Nick Pivetta (3-3) allowed four runs on six hits and four walks, striking out six in 5 1/3 innings.

Taylor Trammell homered for Seattle, which had won 3 of 4 and 10 of 14 since starting the season 11-16. Luis Castillo (2-2) allowed seven runs — five earned — on six hits and two walks while striking out six in five innings.

Yoshida tripled and Turner and Casas homered in Boston’s four-run first. But Seattle tied it in the fourth, thanks in part to Teoscar Hernandez’s sinking liner to center that Duran dived for and missed; the ball rolled past him toward the wall.

“He’s trying to make a baseball play. I’d rather have that than lack of effort,” Red Sox Manager Alex Cora said. “He’s in a great place. He’s going to make mistakes, but overall his game has been a plus everywhere.”

Trammell followed with a two-run homer to make it 4-4. Alex Verdugo doubled leading off the bottom of the fifth, and Yoshida’s one-bounce, ground-rule double in the right-field corner broke the tie. Yoshida took third on a flyout and scored on Castillo’s wild pitch before Duran homered for a 7-4 lead.

Duran singled in another run in the seventh and improved to 7 for 7 on stolen bases.

“He’s a game-changer,” Turner said. “He’s got power. He’s got speed. He uses the whole field and plays great defense in the center. So it’s good to see him having success hitting the ball all over the place and running the bases like it is.”

Yoshida made it 9-4 in the eighth on a bases-loaded groundout.

NOTES: The Red Sox put RHP John Schreiber on the 15-day injured list with a right shoulder strain.