Nick Johnson, Josh Willingham and Adam Dunn homered in consecutive at-bats and the Washington Nationals set season highs for hits and runs in a 13-2 win over the Houston Astros Saturday.

Washington's 21 hits were the team's most since the franchise relocated from Montreal in 2005. The Nationals last scored 13 runs in a game against the Chicago Cubs on August 22, 2008.

Rookie Craig Stammen (2-4) gave up nine hits in Washington's fourth complete game of the season. Willingham added a two-run homer and an RBI double and Alberto Gonzalez had a pair of RBI singles for the Nationals.

Houston starter Mike Hampton (5-6) gave up nine hits in three 2-3 innings, his shortest outing of the season.