HackOverflow Stanford, CA, USA Stanford Women in Computer Science's annual hackathon – open to all Stanford students! $2,288 in prizes Apr 14, 2018 21 participants
Hack Cambridge The University of Cambridge's very own hackathon! Non-monetary prizes Jan 30 – 31, 2016 212 participants
Harlem Tech Challenge Online Help put #harlemtech on the map. Create a mobile friendly website that celebrates Harlem's growing tech community. $4,500 in prizes Winners announced 59 participants
LAUNCH Hackathon 2015 San Francisco, CA, USA Launch 2016 here: launch.devpost.com/ $101,500 in prizes Feb 27 – Mar 1, 2015 1311 participants