Football returned to relative normal in 1945 following the conclusion of World War II. Two rivals from the pre-war years met once again in the annual Grey Cup, but on this occasion, the Winnipeg Blue Bombers were no match for the Toronto Argonauts. For Winnipeg, it was the worst loss by a western team in the Grey Cup since 1923 when Queen's University routed the Regina Roughriders 54–0.

Canadian Football News in 1945

On Thursday, September 27 a new football team was formed in Calgary. On October 10, it was decided that the new team would play as the Calgary Stampeders. The Stampeders joined the WIFU with blue and gold colours. The IRFU would resume play, but the WIFU still suspended operations.

Regular season

Final regular season standings

Note: GP = Games Played, W = Wins, L = Losses, T = Ties, PF = Points For, PA = Points Against, Pts = Points Western Interprovincial Football Union

Grey Cup playoffs

Note: All dates in 1945

Semifinals

Finals

Eastern Finals

Playoff bracket

Grey Cup Championship

1945 Interprovincial Rugby Football Union All-Stars

NOTE: During this time most players played both ways, so the All-Star selections do not distinguish between some offensive and defensive positions.

1945 Ontario Rugby Football Union All-Stars

NOTE: During this time most players played both ways, so the All-Star selections do not distinguish between some offensive and defensive positions.

1945 Canadian Football Awards