HackAmerica Online America's Largest Hackathon for High School Students $575 in prizes May 23, 2026 02:00 PM EDT to submit 504 participants
Global Fusion hackathon Online Bridging Innovation: AI Solutions for Global Challenges $1,750 in prizes Winners announced 234 participants
Los Altos Hacks X Sunnyvale, CA, USA The world's largest high school hackathon. Non-monetary prizes Apr 11 – 12, 2026 279 participants
