HackMIT Cambridge, Massachusetts, USA 1000+ people, $10k+ prizes, 30 hours. October 5-6, 2013 at MIT. Open to all students, all schools. $15,000 in prizes Oct 5 – 6, 2013 693 participants
Hack the Change Philadelphia, Pennsylvania, USA Hack the Change you wish to see in the world. $2,400 in prizes Sep 27 – 28, 2013 38 participants
PennApps Philadelphia, Pennsylvania, USA The World's Premier College Hackathon $30,000 in prizes Sep 6 – 8, 2013 657 participants
