World’s Largest Hackathon presented by Bolt Online Build with AI for a shot at some of the $1M+ in prizes. $1,037,500 in prizes Winners announced 128425 participants
HackUCI 2019 Irvine, CA, USA Create. Connect. Inspire. $5,410 in prizes Feb 15 – 17, 2019 263 participants
Rose Hack 2019 Riverside, CA, USA UC Riverside's Women-centric Hackathon $19,572 in prizes Jan 19 – 20, 2019 78 participants
Cutie Hack 2018 Riverside, CA, USA A beginner-friendly, 12-hour hackathon held at UC Riverside. $5,338 in prizes Nov 11, 2018 122 participants
LA Hacks 2018 Los Angeles, CA, USA Join fellow hackers to build innovative products at UCLA's Pauley Pavilion $23,050 in prizes Mar 30 – Apr 1, 2018 513 participants
HackUCI 2018 Irvine, CA, USA Create. Connect. Inspire. $3,625 in prizes Feb 1 – 4, 2018 238 participants
Local Hack Day IV MLH Local Hack Day hosted by GitHub is back for our fourth year. Build your community with an awesome 12 hours of hacking. Non-monetary prizes Dec 2 – 3, 2017 628 participants
TwitchCon Hackathon 2017 Presented by Major League Hacking Long Beach, CA, USA Use Twitch's suite of developer product to build the (chat bot, data viz, extension, etc) of your dreams! $4,800 in prizes Oct 20 – 21, 2017 69 participants
LA Hacks 2017 Los Angeles, CA, USA Learn it. Build it. $47,300 in prizes Mar 31 – Apr 2, 2017 458 participants
Hackpoly 2017 Pomona, CA, USA The 24 hour intercollegiate hackathon at Cal Poly Pomona for creativity, ingenuity, and technical talent. $1,028,930 in prizes Feb 11 – 12, 2017 205 participants
Hackpoly 2016 Pomona, CA, USA The 24 hour intercollegiate hackathon at Cal Poly Pomona for creativity, ingenuity, and technical talent. $8,850 in prizes Feb 6 – 7, 2016 122 participants