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
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
