1961 CFL season

A third consecutive year of interleague exhibition matches were scheduled with teams in the National Football League.

The Hamilton Tiger-Cats had a better idea for success: challenge the nascent American Football League to a duel.

The Tiger-Cats defeated the Bills, 38–21, giving the Canadian league its first win over an American team since 1941.

The CFL made rule changes for the 1962 season, permitting four defensive backs per team to have unlimited blocking during rushing plays, as long as they are lined up outside the ends.

It also marked the fourth time in five years that the championship was decided between the Blue Bombers and Tiger-Cats.