Best of 7
- Port Arthur 9 Fort William 2
- Fort William 5 Port Arthur 3
- Fort William beat Port Arthur
- Fort William 4 Port Arthur 3
- Fort William 7 Port Arthur 3
Fort William Beavers beat Port Arthur Bearcats 4 wins to 1.
Fort William Beavers advanced to the 1957-58 Western Canada Allan Cup Playoffs.
List of Thunder Bay Senior Playoffs
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