There's a couple of features requests active on challonge at the moment that would greatly benefit the types of tournament which we're trying to run for Chaos Reborn.
If anyone has 2 mins to upvote plus maybe add a comment if might help us to access to these.
Home/Away fixtures for round robins.
http://feedback.challonge.com/forums/44 ... ound-robin
Historical data
http://feedback.challonge.com/forums/44 ... anizations
Randomised teams
http://feedback.challonge.com/forums/44 ... ized-teams