Washington broke open a scoreless tie with a seven-run seventh in a 7-0 win at Miami Tuesday night.
The Nats (10-3) hit four homers in the seventh inning – Jayson Werth (2), Wilson Ramos (2), Bryce Harper (7) and Ryan Zimmerman (1) each went deep in the frame.
Harper’s shot was his second grand slam of the season. The reigning National League MVP now has 20 RBI in 13 games in 2016.
Stephen Strasburg (3-0, 1.25 ERA) gave up three hits in eight scoreless innings, striking out 10 and walking two.