Ross Detwiler allowed four hits in seven shutout innings and Adam LaRoche homered Monday, giving the Washington Nationals their first winning season with a 2-1 victory over the Chicago Cubs.
The NL East-leading Nationals improved to 82-52. The club moved from Montreal to Washington for the 2005 season and went 81-81 that year. In 2008 and 2009, the team lost a combined 205 games, then finished 80-81 in 2011.
Detwiler (9-6) struck out three and walked three, and allowed a runner to third only once.