 In the national pyramid, there are four leagues, the Série A, Série B, the Série C and the Série D. The Série A, Série B and Série C currently consist of 20 teams each.Série D was contested by 40 teams, expanded to 68 in 2016.Série A and Série B are contested in a double-round-robin format by all clubs; Série C and Série D have regional groups.