Trail Running calendar near Louisville 2024-2025

We have found 63 Trailruns within 80 miles of Louisville. See below where and when you can find the races.

The Ol' College Try 24 Hour Ultra is Denver's first and only 24-hour Ultra Race, taking place on May 24th and 25th, 2025, at Auraria Campus. Participants can choose to run for 24hrs, 12hrs, or 6hrs, pushing their limits and aiming for personal bests. The event promises unforgettable memories, incred..

June 2025

The Crazy Legs 10K+ Trail Run will take place in Loveland on Sunday 1 June 2025.

The Estes Park's Backyard Ultra will take place in Estes Park on Saturday 21 June 2025.