well it's not hard to organise
just someone take over and use this http://www.josephsworld.com/tts/tourn.html OR http://www.crowsdarts.com/brackets/tourn.html
Post a master list of the friendcodes
people who are facing each other will add codes
Rules: Best 2 out of 3 with level 5 goalies (computer skill level) on the classroom field.
The higher person in the bracket is the home team
I WOULD ORGANISE IT BUT I'M TOO BUSY, willing to help though