Event details subject to change. Please confirm all information via event website.
Runs With Scissors Races
The race will be held at Riverdale Regional Park, Pavilion B, in Brighton Colorado. Proceeds benefit INSPIRATIONFIELD. INSPIRATIONFIELD works with the developmentally disabled in Otero County (La Junta, Colorado) and […]
Royal Gorge Groove Trail Runs
Prepare for some fun in Cañon City! Enjoy scenic views along the rim of the Royal Gorge, 900 feet above the Arkansas River. All races will start/finish at the Royal […]
Fight for Air Climb
Once again The American Lung Association will be turning one of Denver's iconic landmarks into a stair climbers playground. Join us at Coors Field for the Fight for Air Climb […]
Cheyenne Mountain Trail Race
Celebrating its 15th year, the Cheyenne Mountain Trail Race benefits Achilles Pikes Peak, a nonprofit that helps athletes with disabilities to enjoy the trails and live rich, active lives. Our […]
SOAR 5K
Soar like an eagle on this 5K Run (3.1 miles) that includes a scenic double loop course around Daniels Park and the Welchester Elementary community. Enjoy the challenge of lower […]
Earth Day 5K/10K
The Loveland Classic 5k, 10k, & Kids 1 Mile features a beautiful course on the Centerra Trails around Equalizer & Houts Lakes. After you cross the finish line, be sure […]
Bigfoot Half Marathon
A 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 […]
Tri Nebraska Triathlon
We are a local sprint triathlon focused on the athlete experience in North Platte, Nebraska. We are in our 23rd year. Our course is mostly flat out and back race […]
Strut for Mutts 5K
It is the Journey Home Animal Care Center's Strut for Mutts!
Run for the One 5K
Please join us for our 17th Annual "Run for the One" at Red Leg Brewing Company benefitting our clients and their families affected by Autism in the Pikes Peak Region. […]
Spring Runoff 10M
The 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 […]
Unicorn 5K
Ready 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 […]
Flying Pig 5K
JOIN US FOR THE 17TH ANNUAL FLYING PIG 5K The Flying Pig 5K is a fundraiser that will benefit children’s programs at Foothills Gateway, including the Family Support Services Program […]
Shiprock Marathon
The Shiprock 5K Trail Race will take place at 5:00 p.m. on Friday, May 1 on the Blueberry Hill course, beginning and ending at the Youth Center. There are awards for […]
Take 5 in the Garden of the Gods
Who 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 […]
Foster Care 5K
Adams County will host its annual 5K race, and 1 mile fun run at the Riverdale Regional Park which is home to the Adams County Fair. Registration opens at 6:45 […]
Collegiate Peaks Trial Run
The 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 […]
runBlossom 5K
Event Information: For 20 years, the annual runBlossom race has helped usher in the summer season in Cañon City. As the snow melts and the leaves begin to adorn trees, […]
Niwot’s Challenge
Niwot’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 […]
Duck Waddle 5K
Our Vision: Experiencing physical activity with a group encourages motivation, emotional wellbeing, accountability, fun and friendships. By providing athletic events we hope to inspire youth, families and individuals to enjoy […]
Hope House 5K
Our 13 annual Hope House 5K & Fun Run will take place on Saturday, May 2, 2026 at the Promenade Terrace Park (South of the Westin Westminster)! It will be a fun-filled […]
Furry Scurry
The Furry Scurry is an annual, pet-friendly, fun-filled festival and two-mile dog walk at Denver’s Washington Park to benefit the animals in our care. This year, people can gather in person on Saturday, May […]
Longmont Half and 5K
Longmont's only Half Marathon - now offered in the cooler month of MAY! Join the Half Marathon or 5k distance! Walkers and Runners of all abilities welcome!
Moose Mudder
Please join us for the Annual Moose Mudder! This is a community event that will consist of an untimed 1k fun walk/run and a timed 5k followed by an optional […]
Emerge 5K
The Emerge 5K is our biggest annual fundraiser, and the funds we raise ensure that we can continue to fulfill our organizational mission of breaking the social and financial barriers […]
Blue Ribbon 5K/10K
Grand Mesa Ultras
Come enjoy some of the best mountain running in Western Colorado! Our races are held on the Grand Mesa, the largest flat-topped mountain in the world where the average elevation […]
Best Buddies Friendship Walk
The Best Buddies Friendship Walk is the leading event in the country supporting inclusion for people with intellectual and developmental disabilities (IDD). Join 50,000 participants at 70+ Walks across the […]
Quad Rock Trail Race
Welcome to the Quad Rock 50 and 25 mile trail races, an event put on by trail runners for trail runners. Taking place on the trails and hills west of […]
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