Randolph High School is an independent member of the Massachusetts Interscholastic Athletic Association.

However, the football team has been accepted as a member of the South Shore League and begins play in the Fall 2013 season.

In 2014, they began competing in competitions of the New England Scholastic Band Association (NESBA), after a 21-year break.

The RHS Marching Blue Devils took home the gold medal in the NESBA Championships every year from 2014 through 2017.

[citation needed] Randolph High School is also home to performing arts clubs such as Drama club, performing various shows such as The Addams Family in 2022, Beauty and the Beast in 2023, and High School Musical on Stage!