MadHacks Fall 2025 Madison, WI, USA MadHacks! Wisconsin’s largest in-person hackathon. A 24-hour event open to all disciplines and all backgrounds. Make something cool! Non-monetary prizes Nov 22 – 23, 2025 384 participants
Los Altos Hacks 8 Sunnyvale, CA, USA The world's largest high school hackathon $4,134 in prizes Apr 6 – 7, 2024 216 participants
Treasure Hacks 3.5 Online A Free Generative AI and Blockchain Themed Hackathon, General Hacks are Encouraged to Join as Well! $82,830 in prizes Winners announced 257 participants
Los Altos Hacks VII Sunnyvale, CA, USA The largest hackathon in the world for high schoolers. $42,164 in prizes Apr 8 – 9, 2023 348 participants
BlairHacks_5 Online BlairHacks_5 is a free, 36-hour virtual hackathon on Feb 18-20, 2022 for high schoolers. $13,320 in prizes Winners announced 100 participants
