Red Feather Trail Jamboree

Ben Delatour Scout Ranch 2331 County Rd 68C, Red Feather Lakes, CO, United States

Come enjoy the clean air and wild spaces of the Red Feather Lakes region in Northern Colorado at the Red Feather Trail Jamboree on September 17th. This 50K and half marathon takes place at the Ben Delatour Scout Camp and are designed to be beginner (or PR) friendly.

$85

Wolf Creek Wrangle

Eaton's Ranch 270 Eaton Ranch Road, Wolf, WY, United States

Take a step back in time and run or hike where the settlers of the west once walked! These trail races are hosted by the historic Eaton's Ranch, the country's oldest operating dude ranch located at the base of the Bighorn Mountains outside Sheridan, WY. Test your Wyoming grit on September 17th.

Pikes Peak Ascent

Memorial Park - Manitou Springs 502 Manitou Ave, Manitou Springs, CO, United States

The Pikes Peak Marathon, founded in 1956, is the oldest continually held marathon in the United States, taking runners from Manitou Springs, Colorado, to the summit of Pikes Peak at […]

Canceled Mountain RATS Trail Running Festival

Eagle Ranch Metropolitan District 1203 Capitol St, Eagle, CO, United States

A Colorado end-of-summer outdoor celebration! Come celebrate the beginning of fall in the mountains with a trail running challenge! An exciting day of festival fun and adventure on the trails […]

Superhero 5K/10K

Greeley Family FunPlex 1501 65th Avenue, Greeley, CO, United States

The Superhero Run has become one of Greeley's most popular running events. The event will be held at the Greeley Family FunPlex and includes a 10K, 5K, 1 mile and […]

Beulah Challenge

Beulah School of Natural Sciences 8734 School House Lane, Beulah, CO, United States

The Beulah Challenge is an annual race (started in 1996) consisting of 5K, 10K, and half-marathon distances located in Beulah, Colorado, which is situated in the beautiful Wet Mountain foothills. The 2024 […]

$70

So Long to Summer 5K/10K

Salisbury Park 11920 N Motsenbocker Rd, Parker, CO, United States

Part of the Parker Parks and Recreation Run Series, this event is professionally timed. Registered participants will receive a race shirt, custom bib and a delicious post-race pancake breakfast. The […]

Lisa Nelson’s Mustang Stampede 5K

Ralston Valley High School 13355 West 80th Avenue, Arvada, CO, United States

Lisa Nelson's Annual Mustang Stampede 5K Memorial Scholarship Run/Walk in memory of Lisa Nelson, a beloved faculty member of Ralston Valley High School. Lisa passed away from cervical cancer in […]

Canceled ColorFest Color Run 5K

Yamaguchi Park 684 S 5th St, Pagosa Springs, CO, United States

Brilliant colors will be flying at Pagosa Springs' iconic ColorFest Color Run 5k. As participants venture out on the course, vibrantly hued hot air balloons will be filling the skies […]

Please click here to submit your event for FREE to our online calendar.
We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.