Event details subject to change. Please confirm all information via event website.
Aspen Valley Marathon
Mark your calendars – Don’t miss out on this exhilarating race through the stunning landscapes of Aspen, Colorado! Join us for a one-of-a-kind experience that you’ll cherish forever. The Aspen […]
Elevation Run/Walk
The Elevation Run/Walk is celebrating its 10th Anniversary on July 30th. Featuring a timed 10k race, USATF Certified timed 5k race, and 2 mile fun run. The race is held […]
Box Canyon Trail Runs
The Box Canyon 30K is a scenic and tough loop through the high country of Telluride, Colorado. Runners will leave Telluride heading East towards Bridal Veil Falls. Ascending a rough […]
SSPR TRYathlon
Swim, bike, run for fun! This is the perfect starting point to try a tri. These races are about completion, not competition. All athletic levels are welcome. The only prerequisite […]
Creede 100
The Creede 100 start and finishes in one of Colorado’s true historic mining towns. Creede once drew a rough and tumble crowd with its abundant silver, now we flock their […]
Pancreatic Cancer Awareness 5K
5K run/walk hosted by the loved ones of Diana Cantu. Remembering our mother, Diana Cantu, and honoring her legacy. She bravely fought this disease as the resilent person that she […]
Enchanted Forest Trail Race
Come celebrate the outdoors this summer with The Face Challenge, Heavy Half Marathon, or Full Marathon in the breathtaking “Land of Enchantment.” Spend a weekend conquering rugged trails, soaking in […]
Golddigger 5K
A 5K fundraiser for Clear Creek Cross Country in the mountains just west of the Denver area.
The Hero’s Journey 5K
The 7/20 Foundation is proud to present the 1st annual Hero’s Journey 5K Run/Walk on July 23rd in Aurora. This unique point to point race makes its way through Aurora's City Center and culminates in the 7/20 Memorial Reflection Garden.
Spirit of the West 5K
Please join the Westernaires for the Spirit of the West 5K run / walk and 1K Family Fun run on July 31st in Golden, CO.
Steamboat Lake Sprint Triathlon
After last summer this event instantly became a personal favorite for our staff, volunteers, and athletes - come find out why! We couldn't be more excited about this course, this […]
Summit 200
The Summit 200 has always been a dream race for us. The route is extraordinary in both its beauty and difficulty. Runners traverse one 200-mile loop around Summit County, Colorado […]
Chile Harvest Triathlon
The Socorro Chile Harvest Triathlon has been running for 25+ years!! This race is a 400 m swim in the City of Socorro pool, with a 20 km bike ride […]
Wild West Relay
The Wild West Relay is a scenic point to point running adventure across Colorado. Starting in Fort Collins, teams of any size or individuals, run over mountain passes, through open […]
Rocky Mountain 5K
Escape to the mountains for some fresh air! With the Rocky Mountain Half Marathon, 5K, and Elk Double (half marathon + 5K) you can choose your own adventure! The Rocky […]
Rocky Mountain Half Marathon
Escape to the mountains for some fresh air! With the Rocky Mountain Half Marathon, 5K, and Elk Double (half marathon + 5K) you can choose your own adventure! The Rocky […]
Backcountry Marathon
Utilizing the beautiful trails that surround Aspen, and now offering three distances - 50K, marathon and heavy half-marathon, all of which run almost exclusively on dirt trails. For the first […]
Sheep Mountain Ultras
Make no mistake, the elevation profile for The Sheep Mountain 50 mile and 50k are docile looking. However, the average elevation of over 10,500’ and copious amounts of aggressive terrain, […]
Popsicle 5K
What better way to end these HOT summer days than with a Popsicle 5K, AND WE'VE ADDED A 10K & HALF MARATHON?!! Come join us for a 5K, 10K, or […]
Run for the Ring 5K
The 12th annual Run for the Ring 5K Run/Walk and Kids Fun Run brings together Barbara Davis Center for Diabetes (BDC), patients, loyal supporters, and running enthusiasts to run for […]
Flying Colors 5K
Join us for an untimed Fun Run/Walk to benefit Hospice in our community. The run will kick off a fun weekend in conjunction with the Moffat County Hot Air Balloon Festival. […]
Kennebec Mountain Run
Join us for the Kennebec Mountain Run, a challenging 15-mile trail run through the stunning La Plata Mountains of southwest Colorado. Test your alpine running skills on this rugged course […]
Unicorn 5K
Ready to get off the sofa and gallop around Highlands Ranch with some friends? Yeah, you are! Come frolic with us at the Unicorn Runner 5k in Highlands Ranch to […]
Two Brothers Up-and-Down 5K/10K
Run your slowest 5K, then turn around and run your fastest at the Two Brothers Up-and-Down 10K on August 28th in Idaho Springs. This race climbs 1,800' in 5K and then turns around and goes back down!
Move with MADD 5K
Together We Can End Impaired Driving For Good! The 2026 Move With MADD Denver is Mothers Against Drunk Driving (MADD)'s signature fundraising event to help us raise awareness and funds […]
Steps to Empower 5K
Join us at Mount Saint Francis of Assisi on August 1st for a morning of community and purpose! Whether you prefer a scenic 1-mile stroll or want to tackle our […]
Wicked Wine Run
Founded in 2013, Wicked Wine Run is the longest running and most participated Wine Run in the country. Our journey began with a passion for combining fun, fitness, and fantastic […]
RunAbilities FUN Run
Join Parker Recreation and Square Peg Therapies for our annual RunAbilities FUN Walk/Run/Roll! The two-mile, fully accessible course begins at Cottonwood Park and on to the Cherry Creek Trail.
Snowshoe Shuffle 5K
An out and back 5K Run for all abilities in the beautiful setting of Creede, Colorado. Numerous age group prizes for both runners and walkers. Long sleeved tech tshirt for […]
Mountain Swim Series III
Racers at this beautiful reservoir will have 1 mile, 2 mile and 5K swim options. The swim will be at Willow Creek Reservoir northwest of Granby, Colorado. All swimmers must […]
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