Canadian Football League
The regular season is 21 weeks long, with games beginning in mid-June and finishing by early November. The CFL's nine current teams are divided into two divisions: the East Division with four teams and the West Division, with five teams. Each team plays two games against each of the other eight teams, plus two divisional games with opponents rotating each season. With 18 regular season games being played, each team gets three bye weeks.
List of winless seasons
The Canadian Football League currently has a regular season of eighteen games; from 1952 to 1985 it was generally sixteen games as with the current NFL season, though those teams in the Eastern Division played only fourteen as late as 1973. Also, the CFL did not adopt interdivisional regular season play until the early 1960s. Consequently, especially given the much smaller number of teams playing, there have been fewer imperfect seasons than in the National Football League, with the exception of the first decade or so when fewer games were played.