Brandon Nimmo hit a tie-breaking solo home run off former teammate Zack Wheeler and Edwin Diaz got a six-out save Sunday night as the Mets beat the Phillies, 2-1, in the finale of a four-game set at Citi Field.

Brandon Nimmo’s leadoff, first-pitch home run off Zack Wheeler in the sixth snapped a 1-1 tie and the Mets held on to improve to an MLB-best 15-5 in September. At 87-69, the Mets took over the second wild-card spot from Arizona, which has the same record. The Mets own the tiebreaker by virtue of their 4-3 record against the defending NL champs.

The idea of arriving in Atlanta for the penultimate series of the regular season with just a mathematical chance for the playoffs likely would have been palatable to the Mets when they last departed that city in April.

Brandon Nimmo froze at home plate and uncorked a well-earned fist pump. Nimmo had just rounded the bases with a go-ahead home run against former teammate Zack Wheeler, delivering one of the biggest hits yet in a Mets season filled with clutch theatrics.

Brandon Nimmo hit a go-ahead home run in the sixth inning and three relievers combined for five scoreless as the New York Mets (87-69) grabbed a nailbiting 2-1 victory over the Philadelphia Phillies (92-64) on Sunday night at Citi Field, taking three of four in the series.

Brandon Nimmo’s New York Mets play the Philadelphia Phillies on Sept. 22 at 7:15 PM ET, and will see starter Zack Wheeler on the mound. Nimmo had one hit in his most recent game, finishing

Brandon Nimmo seventh-inning RBI single proved to be the game-winner in Saturday’s 6-3 victory over the first-place Phillies at Citi Field.

With the playoffs right around the corner, the New York Mets could not have picked a better time to step up their play. Having gone 36-22 since the All-Star break, the Mets have overtaken the Atlanta