DubHacks '26 Seattle, WA, USA The largest collegiate hackathon in the Pacific Northwest! $10,700 in prizes Oct 17 – 18, 2026 781 participants
Cal Hacks 12.0 San Francisco, CA, USA This year's Cal Hacks is co-hosted by Claude, Fetch AI, AppLovin, and Amazon's Annapurna Labs! Together we'll assemble in SF for a weekend of hacking, friendship, and crazy ideas. $58,100 in prizes Oct 24 – 26, 2025 2156 participants
DubHacks '25 Seattle, WA, USA DubHacks is a tech and entrepreneurship non-profit in Seattle run by students at the University of Washington. $50,000 in prizes Oct 18 – 19, 2025 751 participants
Roo Code Hackathon Online From space missions to social apps, AI is reshaping how we build, and with Roo Code, you can experience that future in real time. Non-monetary prizes Winners announced 217 participants