Trail Running calendar near Fort Collins 2026-2027

Trail races at Bear Creek Lake Park offering 5 miles or a two-lap 10 miles on single-track dirt. Registration includes park admission, a finisher meal and refreshments; 10 mile finishers receive a commemorative mug.

Trail races at Bear Creek Lake Park in Lakewood CO offering 5 km, 15 km, a 5 plus 15 double, and a kids 1 km with a stuffed bear for finishers. Courses are mostly dirt, single and double track, and fully marked.

Experience 13.1 miles of singletrack trails and hills in the Highlands Ranch Backcountry Wilderness Area. Enjoy custom medals and a post race pancake breakfast while competing for cash prizes in various categories.

A timed 6, 12, and 24 hour event on a certified one mile dirt loop at Swift Ponds in Fort Collins, featuring full aid, medical coverage, relay options and a registration cap of 300.

Trail races of 13.1 miles, 10K, and 5K run on dirt trails around Louisville Community Park with a notable hill offering views of the Flat Irons. The event includes aid stations, drop bag service, and post race festivities.

A high-elevation trail event at Staunton State Park offering 50k, 16 mile and 8 mile options with a 250-runner field, park-and-ride logistics, and winter course contingencies.

Long distance races along the Poudre River Trail near Bellvue, Colorado offering 50 and 100 mile individual and relay options with aid stations, chip timing, post race awards, and a 100 mile format that combines an in person 50 with a self..

The Quad Rock 50 will take place in Fort Collins on Saturday 8 May 2027. You can run between 25 and 50 miles.