Each team plays every team in their own division twice.
Each team plays every team in the other two divisions once.
Playoffs
The winner of each division advances to the 'A' playoffs.
The best non-division winning team advances to the 'A' playoffs.
The 4 non-division winning teams with the worst records advance to the 'B' playoffs.
The 2nd best, non-division winning team will advance to either the 'A' or 'B' playoffs, based on which group (A or B) their record is closer to in the standings.
A 4-team playoff has 2 semi-final games leading to a final.
A 5-team playoff has 1 quarter-final between the two lowest teams, followed by 2 semi-finals and a final.