The 2000 season was contested over 11 races at 6 race meetings.
The 1902-1903 and 1912-1913 seasons were contested two championships.
Since then, the season has been contested annually in four different formats and calendars.
In 1976, shortly after the country's independence from Portugal, the competition's first season was contested.
This season was contested by 20 teams, and Toluca won the championship.
The 1971-73 seasons were contested with these cars, as aerodynamics started to become important.
The season was contested by 16 teams, and Toluca won the championship.
The season was contested between five teams, the top four continuing on to the finals series.
The 2007 season is once again being contested by 14 teams.
The final season was contested by 39 teams, with some teams consisting of players from more than one institution.