The championship was a knockout tournament featuring six clubs that had won six regional divisions.
These divisions were round-robin tournaments that included football clubs that were founded in different geographic areas.
The winners of each division were drawn in pairs at random for each of the three one-match rounds.
Two of the clubs qualified directly for the second round (the semi-final stage) and the other four had to play two quarter-final matches.
In seasons 1937–38, 1938–39 and 1939–40 the championship was reorganised to a 10 club National Football Division but it proved to be an unsuccessful decision and from season 1940–41 the division was reverted to a knockout tournament.