EarthxHack 2018 Dallas, TX, USA The largest environmental hackathon, hosted at Earthx 2018. $7,300 in prizes Apr 21 – 22, 2018 217 participants
Developer Circles Community Challenge Online Completed - 2017 Community Challenge $150,000 in prizes Winners announced 3630 participants
Hack K-State Manhattan, KS, USA The annual hackathon at Kansas State University $26,735 in prizes Nov 3 – 5, 2017 71 participants
