Formula for calculating the number of sessions in a single cycle:

(number of teams-1)X number of teams.

-

2

(7- 1)X 7

- =2 1

2

Simply put, there are only six games for four teams to participate in a single round robin:

(4- 1)X 4

-= 6 games.

2

In addition, the number of rounds in a single round robin is odd and cannot be even. Five people (teams) have five rounds, and six teams have five rounds, except that five teams have a bye each round and six teams (even numbers) have a bye each round. You said that the seven-person single cycle is also seven rounds, but because seven is singular, one person has a bye in each round. The number of rounds is singular 3, 5, 7, 9. ..........