@ftxcommando If number of teams is odd, the 3 highest rated teams will play initial round robin of 3 teams between them to make the number of teams odd. Let’s say 13 teams -> 3 in RR (2 games) + 10 BO1 -> 1+5=6 winners in stage 2.
If any RR ends with 2 teams having an equal score, they play a tie break.