1974-75 Thunder Bay Twins
Allan Cup Canadian Senior Hockey Champions
USHL Standings
North Division
| TEAM | GP | W | L | T | PTS |
| Green Bay Bobcats | 48 | 38 | 8 | 2 | 78 |
| Thunder Bay Twins | 48 | 36 | 10 | 2 | 74 |
| Marquette Iron Rangers |
48 | 23 | 25 | 0 | 46 |
| Calumet Copper Chiefs | 48 | 21 | 25 | 2 | 44 |
South Division
| TEAM | GP | W | L | T | PTS |
| Waterloo Black Hawks | 48 | 30 | 15 | 3 | 63 |
| Sioux City Musketeers | 48 | 28 | 19 | 1 | 57 |
| Milwaukee Admirals | 48 | 18 | 30 | 0 | 36 |
| Chicago Warriors | 48 | 10 | 38 | 0 | 20 |
| Central Wisconsin Flyers | 48 | 7 | 41 | 0 | 14 |
USHL semifinal
Green Bay Bobcats vs. Thunder Bay Twins
Game 1: Twins 6 Bobcats 2 (@ Green Bay)
Game 2: Twins 6 Bobcats 3 (@ Green Bay)
Thunder Bay wins best-of-three series 2-0
USHL final
Thunder Bay Twins vs. Waterloo Black Hawks
Game 1: Twins 4 Black Hawks 2 (@ Waterloo)
Game 2: Black Hawks 7 Twins 2 (@ Waterloo)
Game 3: Twins 9 Black Hawks 3 (@ Thunder Bay)
Game 4: Twins 5 Black Hawks 1 (@ Thunder Bay)
Thunder Bay wins best-of-five series 3-1
Allan Cup Playdowns
St. Boniface Mohawks vs. Thunder Bay Twins
Game 1: Twins 6 Mohawks 3 (@ Winnipeg)
Game 2: Mohawks 5 Twins 3 (@ Winnipeg)
Game 3: Twins 5 Mohawks 3 (@ Winnipeg)
Game 4: Twins 5 Mohawks 2 (@ Thunder Bay)
Thunder Bay wins best-of-five series 3-1
Patton Cup Western Canadian Final
Spokane Flyers vs. Thunder Bay Twins
Game 1: Twins 7 Flyers 2 (@ Thunder Bay)
Game 2: Twins 6 Flyers 1 (@ Thunder Bay)
Game 3: Twins 5 Flyers 4 (@ Thunder Bay)
Thunder Bay wins best-of-five Patton Cup western Canadian championship series 3-0
Allan Cup Final
Barrie Flyers vs. Thunder Bay Twins
Game 1: Flyers 8 Twins 5 (@ Barrie)
Game 2: Twins 7 Flyers 2 (@ Barrie)
Game 3: Flyers 7 Twins 4 (@ Barrie)
Game 4: Twins 8 Flyers 2 (@ Thunder Bay)
Game 5: Twins 5 Flyers 2 (@ Thunder Bay)
Game 6: Twins 8 Flyers 4 (@ Thunder Bay)
Thunder Bay wins Canadian senior championship 4-2
