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.
Professional football (gridiron)
Compared to the other major professional sports leagues of the United States and Canada, football has comparatively few levels of play and does not have a well-developed minor league system or pyramid, either official or otherwise.