WASHINGTON -- Ryan Zimmerman hit a two-run single in the first and Jayson Werth added a long three-run homer to left in the seventh as the Washington Nationals beat the Miami Marlins 6-1 Thursday in front of 25,123 chilly fans at Nationals Park.
For good measure hot-hitting Bryce Harper drove in an insurance run in the third as Washington outscored the Marlins 11-1 in the three-game series.
The Nationals (3-0), the defending National League East champs, swept their first series of the season for the first time since coming to Washington in 2005.
The young Marlins (0-3), who gave up four homers in the series, head to New York to face the Mets after not scoring against the Washington bullpen in the series.
Jordan Zimmermann (1-0) pitched six innings for the Nationals and allowed eight hits, including a solo homer, while throwing 89 pitches.
He was replaced in the seventh by Henry Rodriguez, who retired the side in order. Tyler Clippard pitched a scoreless eighth for the Nats and reliever Craig Stammen came on in the ninth to wrap up the sweep.
The loser for the Marlins was Wade LeBlanc (0-1), who made his first career start against Washington.
Ryan Zimmerman gave Washington a 2-0 lead in the first with a two-run double to score Jayson Werth and Bryce Harper, both of whom had singled against Miami starter Wade LeBlanc.
Justin Ruggiano of the Marlins led off the second with a solo homer to right against Washington starter Jordan Zimmermann. It was the first run of the season for Miami, which was held without a score in the first 19 innings by the Nationals.
The Marlins were shut out in their first two games as Stephen Strasburg and Gio Gonzalez got the starts for Washington.
Denard Span of the Nationals led off the third with a bunt single and went to second on an error by LeBlanc, who tried to shovel the ball to first as he dove to the ground near the bag. The ball rolled past first baseman Greg Dobbs down the right field line as Span took second.
Werth then struck out but Harper drove in Span with a single to right to make it 3-1 with an unearned run. Harper, the Rookie of the Year in the National League last season, had six hits in his first 11 at bats of the series.
NOTES: Marlins first baseman Casey Kotchman is scheduled to go on the 15-day disabled list Friday, the team announced. He injured his left hamstring while running out a double play grounder in the fifth inning Wednesday. Miami manager Mike Redmond said Dobbs, who started Thursday, and Kearns should see most of the action at first base for now. The rookie skipper also said the Marlins will not necessarily add a first baseman to take the place of Kotchman on the roster. ... The Nationals announced before the game they have signed pitcher Chris Young, who was in spring training with the team, to a minor league contract. He is scheduled to work out in Florida before he joins Triple-A Syracuse. "I like him. He threw the ball well in spring training," Washington manager Davey Johnson said. Young was 1-0, 2.25 in four starts in spring training and is 53-43, 3.79 in 159 career starts. ... Former Nats pitcher Jon Rauch came on in the last of the sixth to pitch for the Marlins.