With a goal of striving for excellence, the Catholic Memorial Knights have made their mark as one of the top high school athletics programs in the state. The school has won 44 state championships, six national championships in hockey, and 62 individual state championships. In addition, 16 CM students have earned All-American honors.
Varsity football and hockey are the latest CM teams to bring home state championships. The football team won the 2024 Division 2 Super Bowl while the hockey team captured the 2025 Division 1 Championship.
CM sponsors over 40 teams across 15 sports and hosts two nameplate events.
The CM Invitational is New England's oldest cross country invitational meet, and
the Bill Hanson Invitational attracts some of the best hockey teams in the northeast.