Early CFL (1958–1986)
The first 29 CFL seasons each consisted of 9 teams playing in the same 9 cities. Until 1973, Western Canadian teams played 16 games compared to 14 for Eastern Canada. Since then, all teams played 16 games per season until the season was expanded to 18 games in 1986.
Current era (1987–present)
Since 1987, the number of teams has changed several times but the CFL has retained an 18 game schedule. Since 2014, the CFL includes nine teams in the same cities as it had from 1958 to 1986.
- Top record in North Division
- Top record in South Division