Winners
The September 2026 challenge, the second qualifying round for Workflow 2027, used hackathon archive data. Builders worked with tables covering five years of teams, projects, and peer and finalist voting. Each builder used an AI agent to audit the historical record and built a Sigma app that helped organizers plan the next hackathon with confidence. Judges scored apps on innovation, technical execution, business impact, and presentation, and the top scorer advanced to the Finals for Workflow 2027.
Sigma's September 2026 Hackathon HQ Challenge. Hackie helps companies run internal hackathons including EVERYTHING (ideation, team formation, voting, winner calculations)—except for the actual hackathon project building of course. Participants are on their own for that. Good luck to all!

Explore the rest of the Hackathon HQ field.