Here are the Zero Waste Event links from Ohio State University.  They seem to be setting the standard for such events, especially when it comes to sporting events.  The first link is for events in general.  Anyone organizing a campus event can request assistance to achieve zero-waste.  Some locations require additional fees but many do not.  They rely heavily on the organizers to push the educational aspects. Facilities just supplies the bins and takes care of the logistics.

http://footprint.osu.edu/zero-waste-event-service/

This second link focuses on the athletic events at OSU.  They have managed to reach a waste diversion rate over 90%.  We could do this as well.  Reduction in landfill costs help fund the program.  They sure make it look easy.

http://footprint.osu.edu/zero-waste-at-ohio-stadium-faq.html