Detroit's Brandon Inge singled in the fourth inning, his first hit of the season after an 0-for-20 start.
Athletics center fielder Milton Bradley had the day off, leaving his hitting streak against the White Sox intact at 23 games.
Cardinals third baseman Scott Rolen remained out of the lineup because of back spasms.
A woman was struck by the barrel end of Pittsburgh catcher Humberto Cota's broken bat during the Cardinals-Pirates game and sustained a deep cut above her right eye but did not require hospitalization.
Alejandro De Aza increased his hitting streak to eight with a double in the seventh, matching the best by a Marlins rookie to start the season. Hanley Ramirez hit in eight straight in 2006.
At 7-1, the Braves are off to their best start since 1995; the Nationals fell to 1-8, the franchise's worst start since 1998.![]()