Active Premier Baseball League of Ontario Active Central Ontario Baseball Association Active Inter-County Baseball Association Active London District Baseball Association Active South Simcoe Minor Baseball Association Active Southern Counties Baseball Association Active Western Counties Baseball Association Active Western Ontario Baseball Association Inactive York Simcoe Baseball Association Inactive LDBA Houseleague Active SCBA Houseleague Inactive WCBA River League Inactive Southwestern Senior Baseball League

Inactive District 5 Little League Active District 8 Upper League Active District 8 Lower League