Pablo Martinez Monsivais / AP

Marlins starting pitcher Dontrelle Willis (12), and teammate Miguel Cabrera (24) celebrate after beating the Nationals 9-2 on Monday. Willis (1-0) allowed one earned run and seven hits in six innings.

Dan Uggla reached the upper deck, too — a rarity at RFK Stadium, the cavernous former home to baseball’s Senators and football’s Redskins that the Nationals will leave for a new park after this season — with a two-run homer off Micah Bowie in the seventh.

“It’s just the first day, and we’ve got a long ways to go,” Uggla said, “but it was definitely fun.”

Cabrera went 3-for-4 with a two-run double plus two walks. Ramirez scored four runs, stole two bases and had two doubles and two singles to match his career high for hits in a game; he did it twice in 2006, when he edged Washington’s Ryan Zimmerman for the NL Rookie of the Year award.

Ramirez “starts our fire,” Uggla said. “You just got a little glimpse of what he can do.”

There was more: Center fielder Alejandro De Aza singled and tripled in his major league debut. And pinch-hitter Aaron Boone drove in his 500th career run with a sac fly in the seventh.

Willis (1-0) allowed one earned run and seven hits, leaving after 100 pitches.

“He kept us guessing,” Ryan Church said.

About the only bright spots for Washington were Dmitri Young (two doubles) and Zimmerman, who tripled, singled and made two neat defensive plays — throwing out a batter from the seat of his pants after slipping while fielding a bunt, and stretching over a rail to reach into the photographers’ camera well to make a catch.

Slideshow   The Week in Sports Pictures A kayaker flips out, a racehorse eyes the Triple Crown and more. more photos

“It’s going to be kind of a roller coaster, I think, for us this year,” Zimmerman said. “We’re going to play real well at some points and sometimes we might not play so well. So I think it’s important for us leaders and especially the coaching staff not to kind of get too high and too low and kind of keep us level. Manny does that real well.”

Notes: De Aza wore No. 7, the first Marlins position player with that number since Ivan Rodriguez in 2003. ... It was the first opening day game in Washington since 1971. The Senators left for Texas at the end of that season, and baseball didn’t return to the city until the Montreal Expos moved in 2005. The Nationals began the past two seasons on the road.

More news

Tom Szczerbowski / Getty Images

Who deserves some early awards?

DeMarco: David Wright's hot bat — he's hitting .405 — makes him the pick for NL MVP thus far. But that's just for starters in our feature.

Pirates blank Cubs for 10th straight loss

PITTSBURGH (AP) - A.J. Burnett and four relievers worked out of trouble all game and the Pittsburgh Pirates sent the Chicago Cubs to their 10th straight loss with a 1-0 victory on Friday night.

Headlines

• Label

Nats handle Braves, extend NL East lead

Mets' Gee Ks career-high nine, beats Pads, 6-1

HBT: Hamilton homers for first time since May 12

Stanton 1st player to hit Marlins' sculpture

HBT: Ms' Ackley benched on own bobblehead day

Does winning a postseason award matter?

'Leo Nunez' returns to US, will rejoin Marlins

HBT: Cardinals game streaker says he lost a bet