OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46665 participants
Hack Cupertino 2026 Cupertino, CA, USA A high-school hackathon organized by the Cupertino YAB and Cupertino's Recreation Department to give teens a chance to destress, be creative, and become civically engaged. Non-monetary prizes Apr 11 – 12, 2026 109 participants
United Hacks V6 Online Showcase both your technical and presenting abilities and collaborate with like minded individuals to make and pitch a project during United Hacks V6. $37,100 in prizes Winners announced 1177 participants
Hack Cupertino 2025 Cupertino, CA, USA A high-school hackathon organized by the Cupertino YAB and Cupertino's Recreation Department to give teens a chance to destress, be creative, and become civically engaged. Non-monetary prizes Apr 12 – 13, 2025 90 participants
Los Altos Hacks IX Sunnyvale, CA, USA The world's largest high school hackathon Non-monetary prizes Apr 5 – 6, 2025 293 participants
April 2024 All Online Girls Hackathon Online Exciting Hackathon opportunity on April 20 for Middle & High School Girls! FREE entry, win cash prizes. Beginners welcome! Register by April 5th $300 in prizes Winners announced 87 participants
Hack Cupertino 2024 Cupertino, CA, USA A high-school hackathon organized by the Cupertino YAB and Cupertino's Recreation Department to give teens a chance to destress, be creative, and become civically engaged. $310 in prizes Apr 13 – 14, 2024 85 participants