Now should come more of a test: a visit to the reigning NL Central champion Cincinnati Reds starting Friday.
In Washington's 6-1 victory over Miami in the finale Thursday - the combined series score was 11-1 - Jayson Werth tacked on a three-run homer, Ryan Zimmerman's three hits included a two-run double, Bryce Harper had two more hits, and right-hander Jordan Zimmermann went six innings.
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All were part of the core that won a majors-best 98 games in 2012 and is expected to be in the thick of things this season.
"The window's definitely open for us right now, and hopefully it'll stay open for a long time," Werth said. "But you've got to jump through that window at some point."
His homer in the seventh off reliever Mike Dunn is a sign that his broken left wrist of last season is gaining strength.
"I think you guys are a little bit more worried about my wrist than anybody else," Werth said. "I feel pretty confident in where I'm at."
Harper had another eventful day, collecting two hits for the third consecutive game, getting thrown out trying to steal third with cleanup hitter Zimmerman at the plate, and taking an elbow to the chin (or, as manager Davey Johnson put it, his "coconut") while scoring a run.
"Didn't really hurt too bad," Harper said. "Just was seeing if it was bleeding at the plate. Feels fine, though."
Zimmermann (1-0) followed sterling outings by Nationals starters Stephen Strasburg (seven scoreless innings Monday) and Gio Gonzalez (six scoreless innings Wednesday) by giving up only one run despite allowing eight hits. The Marlins got at least one runner on in every inning against Zimmermann.
"Obviously," Johnson noted, "Zim didn't have his greatest stuff."
Still, it was enough to make sure, in Zimmermann's words, that the Nationals would have "a little momentum going to Cincinnati."
At least Miami finally scored, ending a 19-inning run drought in the second Thursday on Justin Ruggiano's first-pitch homer to right off Zimmermann. The St. Louis Cardinals began the 1943 season with 26 scoreless innings against Cincinnati, the post-1900 major league record, according to STATS LLC.
"It's three games. I don't think anyone here is really panicking," Ruggiano said.
The Marlins have a payroll that's under $45 million this season after trading away several top players, including Jose Reyes and Hanley Ramirez. And yet this isn't exactly a new problem. Last season, they batted .244 - the worst average in franchise history - and scored 3.8 runs per game - their fewest since a 3.6 average in 1993, their expansion year.
"Definitely happy with the way we swung the bats today," said rookie manager
Miami's pitching was solid this series, and Wade LeBlanc (0-1) limited Washington to three runs -- two earned -- and five hits in five innings.
But Werth doubled his team's offensive output with one swing. The Nationals' transformation from a 100-loss club in 2008 and 2009 to a popular World Series has been quick, too.
"We've gone from an up-and-coming team to a (division) championship team," Werth said, "in a very short period of time."
- During Washington-area MASN's TV coverage of the game, viewers were shown side-by-side video of the swings of Harper and a certain guy who went by the name Babe Ruth.
- While Harper and Zimmerman are both batting .500, 1B Adam LaRoche, SS Ian Desmond and 2B Danny Espinosa are a combined 1 for 31 after going 0 for 12 Thursday. Desmond's single Monday in the opener is the lone hit among that trio.
- RHP Chris Young agreed to a minor league contract with the Nationals. He will report to the team's spring training site in Florida for some bullpen sessions before joining Triple-A Syracuse.
- The Marlins plan to put 1B Casey Kotchman on the 15-day DL on Friday with a strained left hamstring.