The original schedule was for a three stage competition that included all 16 Top League teams plus the top four sides from the Top Challenge League, in preparation for the three-tier professional league planned for 2022.
[1] However, due to the COVID-19 pandemic in Japan the season was postponed and re-formatted.
[2] Under the revised format, the two leagues were played separately.
The Top League sides were split into two conferences of eight teams for the first stage, followed by a 16-team knockout stage to decide the champion team.
All matches of the playoff stage are knockouts with lower ranked Top League conference teams and the top four Top Challenge League teams playing in the first round to qualify to the round of sixteen.