It consists of three stages. The First and Second Stages each follow the double round-robin format. The winners of each stage play against each other in the Third Stage for the championship. A third-place match also takes place in the Third Stage between the next two-best teams in the aggregate table. If the same team wins both the First and Second Stage, they are automatically the champion. In this case, the second and third best teams in the aggregate table play against each other for runner-up. Relegation takes place after the Second Stage and is determined using an aggregate table of the first two stages. As well as playing to win the championship and avoid relegation teams also compete for places in the following seasons Copa Libertadores and Copa Sudamericana.
