WASHINGTON -- The Marlins appeared to be on the way to their seventh consecutive win on multiple occasions Friday night before losing a late lead and falling to the Nationals 12-10.

Miami hitters provided leads of 4-1, 8-4 and finally 9-8, but Marlins pitchers surrendered each of them.

“You start off good and really all night long offensively we kept swinging the bats,” manager Don Mattingly said after the team’s longest winning streak since April, 2016 came to an end. “Tried pretty much everything to hold ‘em tonight and it seemed like everything we did, we weren’t able to get those outs we needed.”

• Box score

Starlin Castro’s two-out single gave the Marlins a 9-8 lead in the top of the eighth but Nick Anderson (1-2) walked Adam Eaton and Anthony Rendon with one out in the bottom half. Tayron Guerrero came on and Juan Soto sent a 3-1 fastball to left center for Washington’s first lead of the game.

“I fell behind [3-1] and threw fastball and he put a swing on it,” Guerrero said.

Matt Adams followed with a shot to right center.

Mattingly used seven pitchers in the game and every one of them gave up at least a run, except Tyler Kinley who got the final two outs in the eighth. Guerrero and Adam Conley each picked up blown saves.

“It was equal opportunity giving up some runs there tonight, and those guys have basically been great all year. We just hit the wrong night,” Mattingly said. “If you had told me before the game we were going to get 10 runs and lose I would have said, ‘Hmm, probably not.’ But it was one of those nights. We kept getting the lead. They kept coming back.”

Eaton and Rendon also homered for Washington, which had lost five straight and began the game tied with Miami in the loss column.

Jorge Alfaro homered in the ninth to pull the Marlins within 12-10 and Garrett Cooper’s two-out single put runners on first and second before Nationals closer Sean Doolittle retired Brian Anderson to end it.

“We had a shot,” Mattingly said. “Had the right guys up too.”

The Marlins were looking to win seven straight games for the first time since April 24-30, 2016.

Granderson and Anderson also homered for the Marlins, who lost despite collecting 15 hits.

Marlins starter Pablo Lopez didn’t make it through the fourth, allowing four runs on seven hits in 3 2/3 innings one start after shutting out the New York Mets for seven innings.

“I definitely didn’t do my job,” Lopez said. “I was missing over the heart of the plate and that’s where hitters do their damage.”

Lopez, who had only one clean inning, also lamented not being able to finish off hitters when he was ahead in the count.

“Having guys with two strikes and then giving up hits,” Lopez said. “I have to minimize that, making sure with two strikes we’re either expanding [the strike zone] or executing a pitch right where we want to.”

Marlins pitchers combined for a 1.85 ERA and held opponents to a .200 batting average during the streak.

Granderson’s home run into the second deck in right made it 5-4 and Alfaro (3-for-5 with three RBIs) capped a three-run fifth with a two-run double to make it 8-4, but the Nationals rallied with single runs in the fifth and sixth and two in the seventh.

Granderson, who made a run-saving catch at the wall in the seventh, doubled leading off the eight and scored the go-ahead run on Castro’s single.

“The streak obviously is great but I’ve been saying everything’s always eventually gonna come to an end,” Granderson said, “but the good thing is we get a chance to come right back out here tomorrow and hopefully start something else and get things going.”