Somerville High School has a sports program, highlighted by the recent success of its Cross Country team, that went 6–0 in the Greater Boston League in 2007, 2008, 2009 and 2010, capturing the GBL championship each season. The girls' indoor track team was successful, going undefeated and also capturing the GBL indoor track championship in the 2007–08 through 2010 seasons. Somerville High's outdoor track team also won the GBL Championships, with an undefeated winning streak for the 2008 through 2011 seasons.