Interscholastic sports is defined as athletic competition between multiple academic institutions (or schools).
Interscholastic is an adjective.
California Interscholastic Federation
Interscholastic was created in 1999.
Arizona Interscholastic Association was created in 1925.
Interscholastic Hockey League was created in 1998.
University Interscholastic League was created in 1910.
Interscholastic League of Honolulu was created in 1909.
California Interscholastic Federation was created in 1914.
Sussex County Interscholastic League was created in 1976.
Rhode Island Interscholastic League was created in 1932.
Massachusetts Interscholastic Athletic Association was created in 1977.
Washington Interscholastic Activities Association was created in 1920.