Marshall School supports 19 athletic teams that compete in the Lake Superior Conference, Section 7A (except Boys Hockey, which competes at Section 7AA), and the Minnesota State High School League. More than 85% of Marshall students participate in at least one sport, often alongside other clubs and activities including cheering on fellow student-athletes at competitions throughout the year. Marshall teams compete at the varsity level in 19 different MSHSL sports. Most sports offer opportunities at junior high and JV levels.
Upper school athletics Middle school athletics Boys' hockey Brendan Flaherty, who graduated from Duluth Cathedral in 1982, coached the team for 22 seasons. Coach Flaherty was a three-time Section Coach of the Year, won four Conference Championships and eight Section Championships, and was a three-time State Championship finalist. He coached nine Division I players and nineteen Division III players, among them
Jack Connolly, UMD, Hobey Baker recipient 2012. The Hilltoppers have appeared in seven state tournaments, and most recently finished fifth in the state tournament (2013). In December 2014, Marshall School announced the team would be moving to Class AA, the larger of the two classes, beginning in the 2015–2016 season.
Girls' hockey Marshall School's girls' hockey team had their inaugural season in 2014–2015, playing with just a junior varsity team. In January 2015, Marshall School announced the team would also have a varsity squad for the following 2015–2016 season.
Dance—Jazz division With six Class A Jazz state championship titles, Marshall School Dance Team is the most winning team since jazz was added to the MSHSL in 1997. The dance team experienced a five-year win streak from 2006 to 2011 before winning again in 2015. ===
MSHSL state tournament appearances=== == Notable alumni ==