This is how it goes these days. For these Mets, in this ballpark.

Far more often than not, they’ll find a way to win at Citi Field. And on Tuesday night, to the delight of another near capacity crowd -- again, because that has become the norm in Flushing -- the Mets stirred late, sparked by the power-thumping heartbeat of their lineup in snatching a 5-4 victory, in 10 innings, from the Nationals.

Jeff McNeil delivered the final blow, smacking Kyle Finnegan’s first pitch of the 10th into shallow rightfield for the winning double, adding to the Mets’ best home start in franchise history (25-7). But their sixth walk-off victory of the season was set in motion during the dramatic eighth inning, with the Mets’ biggest stars (and bats) once again playing pivotal roles.

The Citi fans could sense it, too. In the eighth, as soon as Starling Marte drew a two-out walk -- “the at-bat of the game,” as manager Carlos Mendoza would later say -- many rose to their feet with Juan Soto striding to the plate. Soto already had homered earlier, smashing No. 12 in the third, and now the “Let’s Go So-to!” chants rang out in unison.

A month ago, all of that Soto suspense frequently ended in disappointment. But no longer, and not this time. Despite Soto falling behind 0-and-2 to lefty reliever Jose A. Ferrer, the next pitch was a slider that he obliterated for a 107.3-mph rocket to rightfield.

The only question: would it stay aloft just enough for Robert Hassell III to make a diving play? As Hassell lunged in, however, the ball barely skipped under his glove, and Soto had his RBI double.

“How things are going, definitely I was hoping for it to go down,” said Soto, alluding to his early-season luck, the majority being bad. “It did, and I was really glad. I thought the ball was a little farther than it went, but I got it done.”

But fate is smiling more lately on the $765-million slugger, as Soto has now reached base safely in 12 straight games, hitting .341 (14-for-41) with four homers, eight RBIs and a 1.225 OPS during that stretch. He also threw out Jose Tena at the plate in the second inning for his fifth outfield assist this season.

As for Pete Alonso, Tuesday night was more MVP-business as usual, with the Polar Bear once again showing why he’s the last Met any pitcher wants to face, especially with the game on the line. In that eighth inning, when Alonso left the on-deck circle, ready to face Finnegan, the fans again stood as they did for Soto, only this time yelling the familiar “Pete Alon-so!” chants.

He took a 97-mph fastball for a strike, then hammered a splitter well below the strike zone, turning it around for a 110-mph line drive that dented the leftfield wall about halfway up. Alonso hit the ball so hard that he was thrown out at second, but Soto still came around easily for the tying run.

Such heroics have become routine for Alonso, who was just named the NL’s Player of the Week, and he’s now stretched his on-base streak to 18 games, batting .315 (23-for-73) with eight homers, 25 RBIs and a 1.077 OPS over that span.

“As that inning started, the whole time I’m thinking, let’s get the big boys up,” Mendoza said. “Let’s give Soto a chance, let’s give Pete a chance. With the way they’ve been swinging, you feel good about that.”

Said McNeil: “Pete just doing what he does this year.”

Alonso failed to reach base in his first three at-bats, two ending with weak foul pop ups in front of the Mets’ dugout. But it was Alonso who assured Griffin Canning -- after the starter dumped the Mets in an early 3-0 hole -- that the rare deficit by a rotation member would only be temporary.

“Pete came by and said they were going to pick me up,” Canning said.

It took a little while, but Alonso & Co. made good on that promise. First it was Jeff McNeil with the first of his two RBIs, and then Soto’s oppo-blast off Nats starter MacKenzie Gore that just snuck into the front rows of the leftfield party deck in the third inning. There was some jawing between Soto and Gore, along with some staring as Soto rounded third, but nothing escalated beyond that.

“Just a great swing,” Soto said. “I’m waiting for mistakes, he made a mistake and I put the ball in play.”

And the banter on the basepaths?

“We were saying hi to each other,” Soto said, smiling.

Unlikely. But there’s no disputing that Soto appears to be in a much brighter mood since that dark weekend in the Bronx a few weeks back, and it’s easy to see why. It seems to have a direct correlation to his steep rise in production, and that’s been trending upward since the calendar flipped.

“Little by little, we just got to be patient,” Soto said. “Keep doing my thing. Really happy to see the ball landing now in some spots and coming through in big moments. So I’m really happy. I’m just going to try to keep going the same way, all the way.”

It couldn’t be working out much better for the Mets, especially at Citi Field.