2. Group stage, 1/4 finals, semi-finals and finals. These four parts are divided into two stages: group match: within two weeks, 16 teams will play a single double-cycle match, that is, each team will play two discontinuous BO 1 matches with other teams in the same group. 16 teams will be divided into four groups on average. Each group will have 12 regular games. If one team scores equally, there may be an extra draw. 16 teams will be assigned to different groups according to the lottery results. Knockout: Eight teams will be decided in the group stage to enter the knockout stage. At this stage, the BO5 competition system will be adopted. The knockout stages include 1/4 finals, semi-finals and finals.