Regular season In the first season in 2005, all 8 teams competed in a
round-robin tournament, where each team had to play against every other team. In 2006 two conferences were introduced: the
Circuito Norte (North) and
Circuito Sur (South), of 4 teams each. In 2010, with the league changing name to Liga Nacional de Baloncesto, the
Sur conference was renamed
Sureste (Southeast). In 2018, with the folding of Huracanes del Atlántico, the North conference included only 3 teams. In 2019 the team number was reduced to 6, and the league reintroduced the round-robin tournament, eliminating the conference system.
Playoffs In 2005, the first 4 teams at the end of the regular season qualified for the playoffs. With the introduction of two conferences (
Circuitos) in 2006, the first 3 teams of each conference qualified for the playoffs. In 2011 this was changed, as only the first 2 teams qualified for the playoffs, thus eliminating the first round of the playoffs. The first two teams of each conference faced each other in the playoffs semifinals, and the championship game was played between the winners of the semifinal series. In 2016, the first 3 teams of each conference qualified for a further postseason round robin tournament, the winners of which qualified for the championship game. This was eliminated in 2018, with the folding of Huracanes del Atlántico, and the league resumed the original playoff format, reintroducing the semifinals. ==List of champions==