Colorado 24 Hour Run

Colorado 24 Hour Run starts at 8:00 a.m. on November 7, 2026 in Fort Collins, Colorado, and offers a range of timed formats from the same gun: 24 hours, 12 hours and 6 hours, each available solo or as a relay. All of them run on a flat, scenic one-mile loop, so you can choose your own challenge, whether that is a personal distance record or simply a fast marathon on a forgiving course.

Timed racing rewards patience and logistics over speed. On a one-mile loop you pass your own supplies every few minutes, which makes fueling and shoe changes easy but also makes it tempting to start too fast. Pick a conservative lap pace you could hold for hours, eat early and often, and let the loop count take care of itself. The atmosphere is deliberately supportive, with runners encouraging each other throughout.