The John A. Ryan Arena, also known as the JAR, was built in 1972 as approved by the Honorable Town Council. The JAR is the home of many local and area groups. These groups include the Watertown Youth Hockey Program and the Lady Raiders Girls Youth Hockey Program, along with Belmont Youth Hockey, Waltham Youth Hockey, Newton Youth Hockey, the Boston Junior Eagles, the New England Pride, and the Middlesex Yankee Conference Youth Girls League.
The JAR is also home to the Watertown High School Boys and Girls Hockey teams, and the Newton South and Newton North High School Boys Varsity Hockey. Bentley University, a Division 1 NCAA Ice Hockey Program playing in the Atlantic Hockey League, has played at the John A. Ryan Arena since 1975.
For adult groups, the Watertown Men’s Senior A Hockey League, which started play in 1972, continues to call the Ryan Arena its home. Hockey New England, formerly known as Greater Boston Hockey, uses the JAR as one of its rinks in promoting adult ice hockey. Several adult groups continue to use the JAR for its recreational ice hockey purposes.