BOSTON — Isiah Kiner-Falefa drove in the go-ahead run with a safety squeeze in the ninth inning and hit his first home run with New York, sending the AL East-leading Yankees past the Red Sox 3-2 on Saturday night for just their second win in 10 games.

It was Manager Aaron Boone’s 400th victory with the Yankees.

Alex Verdugo had two hits for Boston, which had won its last two games, including a dramatic 3-2 win over New York in 10 innings on Friday night.

Andrew Benintendi sparked New York’s winning rally with a one-out double off the center-field wall against John Schreiber (3-2). Jose Trevino reached on an infield hit before Kiner-Falefa laid down a perfect bunt toward first base on the next pitch, with Benintendi scoring on a head-first slide.

Aroldis Chapman (1-3) got four outs for the victory. Scott Effross worked a rocky ninth for his second save.

Reese McGuire and Tommy Pham hit consecutive singles for Boston with one out in the ninth. But Rafael Devers bounced into a fielder’s choice and Xander Bogaerts popped out.

Benintendi also made a diving catch in left in his second game back at Fenway Park since being traded by the Red Sox in February 2021.

Yankees slugger Aaron Judge went 0 for 2 with two walks, a night after hitting his major league-leading 46th homer. He had reached at least three times in his previous five games.

Trailing 2-0, the Yankees tied it in the fifth when Kiner-Falefa drove in Benintendi with a shot to left. Kiner-Falefa is in his first season with New York after he was acquired in a trade with Minnesota in March.

The Red Sox jumped in front in the fourth when Jarren Duran was hit on the back leg by a pitch with the bases loaded and McGuire followed with a sacrifice fly.

FOR STARTERS

Making his second start since being acquired from Oakland at the trade deadline, Yankees right-hander Frankie Montas allowed five hits, struck out four and walked two in five innings.

Boston’s Kutter Crawford yielded two hits, struck out five and walked four in six innings.

IT’S TIME

With his team behind three other teams that are chasing the AL’s final wild-card spot, Red Sox Manager Alex Cora knows his club needs to go on a run soon.

“It’s a sprint now. It’s not a marathon,” he said before the game.

SOX SWITCH

Boston recalled right-hander Jeurys Familia from Triple-A Worcester and optioned right-hander Kaleb Ort.

TRAINER’S ROOM

Yankees: Boone said outfielder Giancarlo Stanton (left Achilles tendinitis) worked out at Yankee Stadium on Saturday after he “ramped up a little bit more” Friday. Boone said the next step is “a full pregame workout” in the next day or two and then a rehab assignment.

Red Sox: Cora said second baseman Trevor Story (right hand) “will be coming with us on the road to take BP.”