The 2010 season was split into two stages, each with an identical double round-robin format.

Twenty-two clubs will play in double round-robin format, a total of 42 games each.

The first stage of each championship is a double round-robin format.

Since 2006, it is played in a double round-robin format.

The series was contested in its original double round-robin format, with each team playing the others twice.

The 2008-09 season kept the double round-robin format but the league was increased from 14 to 16 teams.

In the first stage consists of a double round-robin format.

All matches played on a home and away double round-robin format.

The four teams in each group will play against other in a double round-robin format.

Twelve clubs play in double round-robin format (home and away), a total of 22 games each.