How to arrange eight teams in two venues in badminton competition?

If you do a single-cycle race, you can divide it into upper and lower zones and draw 1-8.

The first round 3-4, 5-6; 1-2,7-8 with 2*2 fields;

In the second round, the winner of the first half and the winner of the second half are the same as 2 games;

The third round final, the first and second place finals, the third place finals, there are two games.

A ***8 games.