Discussion came up on Facebook, figured I'd make a topic for it here as well.
https://www.facebook.com/events/904255892982516/permalink/904930249581747/
League of Legends, at a Riot prize support size of 8 teams is a large tournament, normally taking place over 2 days. With the high participation requirement for prize support we've only been able to pull it off in 2012 with 40 people, and 2013 with 24 people. We need to come up with a good pre-finalization gauge of whether this tournament would be populated enough to complete.