Hi Cliff, the competition runs across all 3 shows (first round Saturday night, following rounds on the Sunday), there are still plenty of fights to go into if you go out (you dont have to go into the comp either if you dont wish to). The rest of the show is made up of 'whiteboard' fights, before the show a whitboard will be setup with the fight spaces, any competition fights will be added by the crew. Any spare fights are free for you to enter as you wish, just put your name in which ever fight you want to go into (most fights will have a limited amount of enteries just to balance the show). If this is your first event, make yourself known to one of the crew when you arrive and they can help you out.