ICFP Programming Contest 2025

This is the 28th instance of the annual, 72-hour programming contest series sponsored by the ACM SIGPLAN International Conference on Functional Programming. The contest first ran in 1998. Winners will be presented in October at the ICFP/SPLASH mega-conference in Singapore.

The contest was held from Friday 5th September 2025 at 12:00 UTC to Monday 8th September 2025 at 12:00 UTC. There was a lightning division, ending on Saturday 6th September 2025 at 12:00 UTC.