When building a tournament, there are three options for formats:
Teams will be arranged in a bracket format for your tournament. This can be customized to single knockout, series, etc.
Teams will be assigned to a pool format for your tournament. This is for users looking to do a round-robin style tournament.
Pools and Bracket:
Teams will be assigned to a pool format, then later assigned to a bracket. This is for tournaments looking to have a round-robin style tournament, then later place teams into a bracket based on their results.