OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners TBD 46796 participants
HackIllinois 2026 Urbana, IL, USA HackIllinois is the University of Illinois Urbana-Champaign's premier collegiate hackathon. Launch your legacy at HackAstra! $17,920 in prizes Feb 27 – Mar 1, 2026 678 participants
NexHacks Pittsburgh, PA, USA TURING CITY is an immersive 24-hour hackathon where hackers construct the building blocks of a sentient digital metropolis. $68,500 in prizes Jan 17 – 18, 2026 874 participants
Codegeist 2025: Atlassian Williams Racing Edition Online Accelerate innovation: Build on Forge, extend Jira, Confluence, Bitbucket, and more— win your share of $120K. $120,000 in prizes Winners announced 3509 participants
Badger Build Fest Madison, WI, USA Badger Build Fest is a 24-hour half-hackathon half pitch-competition where participants choose between Venture and Blockchain tracks to build the next big thing. $6,000 in prizes Nov 15 – 16, 2025 94 participants
Cloud Run Hackathon Online Build applications with Cloud Run $50,000 in prizes Winners announced 3419 participants
Agentic AI Unleashed: AWS & NVIDIA Hackathon Online Build the future of agentic AI with AWS and NVIDIA Non-monetary prizes Winners announced 1957 participants
Uncommon Hacks 2025 Chicago, IL, USA Spend 24 hours working on an exciting project, leveling up your skills, and connecting with fellow hackers in this one-of-a-kind experience! $1,730 in prizes Mar 29 – 30, 2025 146 participants
MadData25 Madison, WI, USA Working on real world data problems under a time constraint Non-monetary prizes Feb 22 – 23, 2025 132 participants
