League playoffs are arranged as a double elimination tournament with a 16 player maximum size (there is no minimum size):
Image 4 (Sub-section 2.1): Double Elimination playoff bracket
The following images represent samples of a standard 16 person double elimination tournament bracket. The top image is the winners bracket (i.e. ‘A bracket’) and the bottom picture is the losers bracket (i.e. ‘B bracket’); the numbers below each column represent the sequence in which matches should be played.