 Dundas finished first in the standings and beat third-place Georgetown 3-1 in a best-of-five playoff final.Collingwood was second, Orillia was fourth, Barrie was fifth, Port Elgin dropped to sixth and Owen Sound finished seventh.In 1980-81 the league changed its name to Major Intermediate A as it had fully absorbed the Niagara league which floundered around 1979.