Los Altos Hacks III Sunnyvale, CA, USA Los Altos's third annual high school hackathon $43,532 in prizes Mar 24 – 25, 2018 217 participants
HSHacks III Fremont, CA, USA 1000-student, 24-hour high school hackathon in the Bay Area $36,691 in prizes Mar 25 – 26, 2017 277 participants