Event details subject to change. Please confirm all information via event website.
Bigfoot Half Marathon
Bond Park Macgregor Avenue, Estes Park, CO, United StatesA road half marathon & 5k in beautiful Estes Park, finishing downtown amidst the infamous Bigfoot Days Festival. This is a scenic run just outside Rocky Mountain National Park. Finish in Bond Park surrounded by live music, Bigfoot celebrities, and a FREE festival featuring 50+ vendors and booths. Once you're done racing, grab your first […]
RMRR Blue Heron Half Marathon and 5K
Riverdale Regional Park 9755 Henderson Road, Brighton, CO, United StatesThe Blue Heron Half Marathon and 5K courses are flat and fast, along the S Platte River. Along the way you will enjoy wildlife, placid waters, and scenic views. Join the Rocky Mountain Road Runners on April 24th at the Adams County Regional Park in Brighton.
Spring Runoff 10M
Dutch Clark Stadium 1000 W. Abriendo Ave, Pueblo, CO, United StatesThe American Driving Academy and the Southern Colorado Runners welcome you to the 48th Annual Spring Runoff Sunday, March 2nd, 2025. Join us for the 48th edition of Pueblo’s oldest and largest running event. The American Driving Academy, a locale company, is the main sponsor of our race and a portion of race proceeds benefit […]
Unicorn 5K
Great Lawn Park 101 Yosemite St, Denver, CO, United StatesReady to gallop around Denver with some friends? Yeah, you are! Come frolic with us at the Unicorn Runner 5k at Great Lawn Park to kick off your spring running season! You'll earn a sweet tee shirt and a flashy unicorn finisher medal!
Take 5 in the Garden of the Gods
Garden of the Gods Park 1805 N 30th St, Colorado Springs, CO, United StatesWho can turn down a morning in Garden of the Gods? We'll close the park to traffic, so runners can enjoy their race, traffic free! Choose between a 5k or 5 Mile course through the Garden of the Gods. Runners can choose between a road race or a trail race! Beginning in 2022, we've be […]
Greenland Trail Race
Greenland Open Space 1532 E Noe Rd, Larkspur, CO, United StatesThe Greenland Trail Race offers four outstanding distances in southern Douglas County. Run the 4 Miler, the 8 Miler, the 25K, or tackle the 50K ultramarathon, Colorado’s fastest 50K! With Pikes Peak as your backdrop, you’ll cruise over a soft dirt trail on your way to a new personal best. With chip timing, an innovative technical running shirt in men’s and women’s sizing, food and beer at the finish, this race will make you want to come back for more!
High Line Canal Run
deKoevend Park 6315 S. University Blvd., Centennial, CO, United StatesThe 45th Annual High Line Canal 5K & 10K race takes place along the beautiful High Line Canal Trail. Registration includes post-race pancake breakfast.
Collegiate Peaks Trial Run
Buena Vista Community Center 715 E Main St, Buena Vista, CO, United StatesThe Collegiate Peaks Trail Run takes place in Buena Vista, Colorado and offers two race distance options - 25 miles and 50 miles. The race was established in 1991 and provides a significant challenge of not only time but also physical and mental stamina. Beginning and ending near the Arkansas River in Buena Vista, the […]
PPRR Nielson Challenge
North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United StatesRace Format The first time you run this event, you'll establish a base time for yourself. This base time is used to generate a handicap time. The handicap time is calculated using an algorithm developed by Bob Royse, and it's geared to favor a beginning runner and the slower runners. Click here for an explanation of the […]
Niwot’s Challenge
Sedalia Post Office 4195 Douglas Ave, Sedalia, CO, United StatesNiwot’s Challenge is a very difficult, grass-roots, ultramarathon in Colorado’s Front Range. It is modeled after the arduous Barkley Marathons in Tennessee, and the historic More and More Difficult 50K in New Hampshire. Much of the information for this event is kept secret with an exception for those who are accepted for entry. This is […]
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