This is the 1980-81 Central Amateur Senior Hockey League Regular Season Series with Thunder Bay Twins .
Thunder Bay Twins played 8 games in the 1980-81 CASHL Regular Season, 2 against each team. These games counted towards League standings. All games were played in Thunder Bay.
- Thunder Bay Twins
- East Kildonan-Elmwood Millionaires
- St. Boniface Mohawks
- Steinbach Huskies
- Warroad Lakers
|1||Steinbach Huskies||1||Thunder Bay Twins||8||Saturday, November 8, 1980|
|2||Steinbach Huskies||2||Thunder Bay Twins||3||Sunday, November 9, 1980|
|3||East Kildonan-Elmwood Millionaires||2||Thunder Bay Twins||6||Saturday, November 15, 1980|
|4||East Kildonan-Elmwood Millionaires||1||Thunder Bay Twins||6||Sunday, November 16, 1980|
|5||Warroad Lakers||2||Thunder Bay Twins||6||Saturday, January 3, 1981|
|6||Warroad Lakers||5||Thunder Bay Twins||9||Sunday, January 4, 1981|
|7||St. Boniface Mohawks||8||Thunder Bay Twins||4||Saturday, January 17, 1981|
|8||St. Boniface Mohawks||3||Thunder Bay Twins||11||Sunday, January 18, 1981|