 Each female player must qualify through the Women's Professional Billiard Association, the professional women's billiards tour based in the United States, in order to compete in this annual event.The tournament format is essentially double-elimination (a player is out of the tournament after losing two ) until two players remain.Most professional pool "double-elimination" events, however, are not true double-elimination formats, where the player who reaches the finals from the loser's side has to defeat the winner's side player twice for the title.