Hacktech Pasadena, CA, USA The West Coast's Premier Interdisciplinary Hackathon! $32,038 in prizes Feb 26 – 28, 2016 269 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
HackUCI Fall 2015 Santa Ana, CA, USA Build Create Innovate $32,500 in prizes Nov 20 – 22, 2015 111 participants
Citrus Hack Fall 2015 Riverside, CA, USA Citrus Hack | UCR's and the Inland Empire's premier hackathon $6,700 in prizes Nov 6 – 8, 2015 114 participants
LA Hacks 2015 Los Angeles, CA, USA The West Coast, Best Coast Hackathon is back. LA Hacks 2015. $13,100 in prizes Apr 3 – 5, 2015 309 participants
Hackpoly Pomona, CA, USA Hackpoly is Cal Poly Pomona's event of the year for creativity, ingenuity, and technical talent. $3,075 in prizes Feb 20 – 21, 2015 70 participants
SB Hacks Santa Barbara, CA, USA SB Hacks is an event in which hundreds of talented programmers compete for 36 hours to make amazing projects. The projects are then judged by tech professionals from the industry and from academia. $17,200 in prizes Jan 30 – Feb 1, 2015 162 participants
HackSC Fall 2014 Los Angeles, CA, USA Ready, set, hack! Non-monetary prizes Nov 7 – 9, 2014 250 participants
Cal Hacks Berkeley, CA, USA Cal Hacks is the first major collegiate hackathon in the Bay Area. Non-monetary prizes Oct 3 – 5, 2014 473 participants
LA Hacks - Spring 2014 Los Angeles, CA, USA The Hackathon of the West Coast. 36 Hours. April 11-13 in Pauley Pavilion at UCLA. $30,300 in prizes Apr 11 – 13, 2014 515 participants