Trail Running calendar near Brighton 2026-2027

A multi distance trail festival in Castle Rock featuring a family adventure run plus 5K, 10K, half marathon and 50K ultramarathon across Philip S. Miller Park and Ridgeline Open Space. Events include chip timing, finisher medals and aid sta..

A four-race trail series across city parks with increasing distances, chip timing, and cumulative awards for runners who complete all four events.

A fall trail race at Staunton State Park offering 50K, 25K, a 25K FishSlappers division, and a steep 5K, run on runnable singletrack with aid stations and fundraising for land and water conservation.

Trail races at Indian Creek Campground near Sedalia, CO offering 50 mile, 55k, 15 mile and 5 mile routes through montane forest and red rock scenery with limited entries and defined time limits.

A set of trail races at Palmer Park in Colorado Springs offering 50K, 25K, 10K and 5K courses with urban mountain views, marked single-track and aid station support on the longer distances.

Trail marathon and half at Horsetooth Mountain Park on mostly singletrack and redstone hardpack. Two distances with published elevation gain, fully stocked aid stations, drop bag options, and time allowances.

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.

A four-race trail series in Colorado Springs with distances that increase each round and varied terrain from grass fields to rocky single track. Chip timing is used and series awards require finishing all four races.

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.

A four-race trail series in Colorado Springs with distances that increase each round and varied terrain from grass fields to rocky single track. Chip timing is used and series awards require finishing all four races.

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 four-race trail series in Colorado Springs with distances that increase each round and varied terrain from grass fields to rocky single track. Chip timing is used and series awards require finishing all four races.

A late November trail event in Colorado Springs with 50k, half marathon and 10k options across historic High Drive and Gold Camp Road, staffed aid stations, and crew-accessible locations including warm food at Cheyenne Canon.

A four-race trail series in Colorado Springs with distances that increase each round and varied terrain from grass fields to rocky single track. Chip timing is used and series awards require finishing all four races.

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.

Experience winter trail running at Cheyenne Mountain State Park with views of Pike's Peak. Choose from traditional race distances or unique timed events ranging from 6 to 15 hours across four scenic loops.

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..

Trail race in Palmer Park, Colorado Springs offering 50K, 25K, 10K and 5K routes on singletrack with sandstone bluffs and city views of Pikes Peak. Registration closes Apr 15.