How to arrange the schedule of badminton doubles 2 1 team?

If 2 1 team wants to play a single round robin, I think it can be divided into four groups, namely: the first group has 5 teams; The second group of 5 teams; There are 6 teams in the third group and 5 teams in the fourth group.

In the first stage, the team conducted a single round, and the top two in the group qualified. In the second stage, the eight qualifying teams will play a 1/4 cross-elimination tournament (the team with the first place and the second place among the four teams can draw lots to choose their opponents, similar to the Su Cup system), and then the semi-finals and finals will be held.

Group match (1 0+10+15+10) = 45 matches. After the quarter-finals, 7 matches (4+2+ 1) need 52 matches to decide the champion, and finally/kloc can be admitted. 1 runner-up The two teams tied for third place.