As a new idea,
For leagues in which users are supposed to start their own games, without a fixed game plan, it would be nice if a match could be created in the fronted, without the user having to access the backed directly.
Thus, the users could simply create games after their activity.
Another possibility would be to create a league in which the users can click on the club and demand it.
Then a game would be created directly.
Customer support service by UserEcho