DiamondHacks 2026 San Diego, CA, USA San Diego's Largest Hackathon $25,710 in prizes Apr 4 – 5, 2026 366 participants
IrvineHacks 2026 Irvine, CA, USA Create. Connect. Inspire. $10,200 in prizes Feb 27 – Mar 1, 2026 388 participants
ICSSC's WebJam 2025 Irvine, CA, USA WebJam is a week-long event where students come together as teams to create fully functional web or mobile applications. Non-monetary prizes Nov 3 – 7, 2025 85 participants
