OCCHacks Costa Mesa, CA, USA OCC's Third Hackathon — 30 Hours, One Project $2,000 in prizes Oct 10 – 11, 2026 101 participants
UC Berkeley AI Hackathon 2026 Berkeley, CA, USA Come join us at the world's largest AI Hackathon hosted by the team behind Cal Hacks! $96,700 in prizes Jun 20 – 21, 2026 1082 participants
PantherHacks 2026 Orange, CA, USA Chapman University's second annual 48-hour hackathon! Non-monetary prizes Apr 3 – 5, 2026 79 participants
