These were held to determine the entry from the Thunder Bay Amateur Hockey Association into the Memorial Cup playoffs:

After the 1969-1970 season Junior was divided in to Major Junior and Junior A. The Thunder Bay area teams completed in Junior A, which had the Centennial Cup as the national championship until 1995. From 1996 onward  the Royal Bank Cup was the national championship for Junior A hockey.

After one season of no Junior A level hockey in the area the Superior International Junior A was formed for 2001-02 season as only Junior A league in district and thus the league playoff champion advanced to the Dudley Hewitt Cup.
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