This is the 1979-80 Central Amateur Senior Hockey League Season.
- Brandon Olympics & Transcona Chargers withdraw.
- League Expands, accepting the Warroad Lakers.
- League schedules 85 games, 32 per team, included 10 games with Thunder Bay Twins.
- Manitoba Amateur Hockey Association announced that League playoffs would be for the Pattison Cup,
|1979-80 Central Amateur Senior Hockey League Standings|
|St. Boniface Mohawks||32||19||13||0||na||na||38|
|East Kildonan-Elmwood Millionaires||32||18||14||0||na||na||36|
|St. James Flyers||32||7||25||0||na||na||14|
|Thunder Bay Twins||10||9||1||0||na||na||-|
Note: The Lakers were the only CASHL team to beat the Twins.
- Warroad Lakers defeated Steinbach Huskies 4-games-to-2
- St. Boniface Mohawks defeated East Kildonan-Elmwood Millonaires 4-games-to-3
- Pattison Cup Championship
- St. Boniface Mohawks defeated Warroad Lakers 4-games-to-1
- see 1979-80 Central Amateur Senior Hockey League Playoffs
Western Canadian ChampionshipEdit
- Allan Cup Playoffs
|MVP||Gerard McDonald||St. Boniface Mohawks|
|Top Goaltending (GAA)||?????|