OHA Sr. Exhibition
Oct. 31, 1980
Thunder Bay Twins @ Woodstock Gems
Twins 10 Gems 5
Nov. 2, 1980
Thunder Bay Twins @ Petrolia Squires
Squires 7 Twins 6
Nov. 29-30 , 1980
Petrolia Squires vs. Thunder Bay Twins
@ Fort William Gardens
Game 1: Twins 4 Squires 2
Game 2: Twins 8 Squires 1
T.B.A. , 1980
NHL Old Stars vs. Thunder Bay Twins
@ Fort William Gardens
Game 1: Twins 7 Old Stars 6
Game 2: Twins 13 Old Stars 12
Allan Cup tournament @ Thunder Bay
Thunder Bay Twins – St. Boniface Mohawks – Petrolia Squires – Grand Falls Cataracts
Thunder Bay games
Game 1: Twins 8 Squires 3
Game 2: Twins 9 Cataracts 4
Game 3: Twins 5 Mohawks 4 (OT)
Semifinal: Mohawks 4 Twins 3
NOTE: Petrolia went on to defeat St. Boniface in the championship game to win the 1981 Allan Cup.