National Junior Classical League was created in 1936.
National Senior Classical League was created in 1960.
Junior Women's Hockey League was created in 2007.
American Classical League was created in 1919.
International Junior Hockey League was created in 2005.
Metro Junior A Hockey League was created in 1950.
Minnesota Junior Hockey League was created in 1974.
Canadian Junior Football League was created in 1890.
Saskatchewan Junior Hockey League was created in 1968.
Continental Junior Hockey League was created in 2010.
Junior League World Series was created in 1981.
Eastern Junior Hockey League was created in 1993.
Calgary Junior Hockey League was created in 1945.