A smiling Edwin Diaz summed it up well.

“I’ve had my ups and downs,” Diaz said hours after the final pitch at a Citi Field still packed with players and fans who didn’t want to leave, “but at the end of the day, I was able to do it. do my job.”

He’s done his job, throwing more pitches than ever before in such a short span of time and making a dramatic Mets season reach peak drama.

Diaz wasn’t sharp — not even close — but the closer successfully capped off the Mets’ 4-1 NLDS win over the Phillies on Wednesday.

David Peterson followed Jose Quintana and Reed Garrett and was outstanding for 2 ¹/₃ innings, throwing just 23 pitches.

With a three-run lead and the No. 6 hitter scheduled for the Phillies, Carlos Mendoza opted to pull the southpaw and deploy one of the most electric – and flammable – arms in the game.

“It was always going to be Diaz. He’s the best in the league,” Mendoza said of a pitcher who continues to get spooked but keeps escaping. “And once Petey got through the eighth, it was Díaz’s game. I didn’t hesitate.”

Doubts may have crept in after the first two batters. Diaz threw a total of 10 pitches to JT Realmuto and Bryson Stott, who both walked and plated the tying run.

He didn’t know why his location was missing. Pitching coach Jeremy Hefner and Francisco Alvarez visited Diaz with a simple message: aim in the middle.

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“They said, ‘Hey, your fastball looks great today. You have a lot of life on your fastball, just throw it down the middle,” Diaz recalled. “We’re winning by three runs, and I don’t think they can hit your fastball with much force.”

“So that’s what I did. I threw my fastball right down the middle and got the out.”

Four of Diaz’s five pitches to Kody Clemens, who struck out, were fastballs. All four of his pitches to Brandon Marsh, who flied out, were fastballs. Three sliders helped get two hits on the imposing Kyle Schwarber, but Diaz reached back and threw a 100-mph heat past Schwarber for hit three.

“Even after the two walks,” Mendoza said, “I knew he would get it done, and he did. This is where we celebrate.”

They also celebrated in Atlanta, where Diaz blew a three-run lead in the eighth, watched Francisco Lindor put the Mets ahead again in the ninth, and Diaz told Mendoza, “I got this,” before recording the final . three out.

They also celebrated in Milwaukee, where Diaz walked two of the first three batters he faced, but survived and eventually made room for Peterson for the save.

The drama remains, just like the end result.

“Today I just came here and did my job,” Diaz said.