The Washington Nationals, again led by former Braves outfielder Willie Harris, made Atlanta look like a former contender.
Harris drove in five runs and reached base five times, Jesus Flores had four hits and Austin Kearns hit a two-run homer as the Nationals routed the Braves 15-6 on Sunday.
Washington outscored Atlanta 23-8 to win the last two games of the series. The series loss was a crushing disappointment for the fourth-place Braves, who hoped for a strong start after the All-Star break.
The only highlights for Atlanta were two homers by Mark Teixeira, who had three hits and drove in three runs, and a two-run homer by Martin Prado in the fourth off Odalis Perez.