CBLOL is the premier League of Legends league in Brazil. 

The League consists of two seasons, this being the winter season where the top 5 placed from the summer season, the 1st of the previous Challenger Circuit season and the two qualifying teams from the Winter Promotion series will play in a double Round Robin regular season that leads into playoffs where the team that is to represent Brazil in the upcoming 2018 World Championship Play Ins is decided.