Cal Hacks Berkeley, CA, USA Cal Hacks is the first major collegiate hackathon in the Bay Area. Non-monetary prizes Oct 3 – 5, 2014 477 participants
MHacks Ann Arbor, Michigan, USA Looking for the most recent MHacks? : http://mhacks8.devpost.com/ $31,760 in prizes Sep 20 – 22, 2013 613 participants