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  • Pancreatic Cancer Awareness 5K

    Cole Park 300 Hunt Ave, Alamosa, CO, United States

    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

    Brandenburg Park 101 Main Street, Red River, NM, United States

    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 […]

  • Denver CF Climb

    Coors Field 2001 Blake St, Denver, CO, United States

  • Golddigger 5K

    Clear Creek High School 185 Beaver Brook Canyon Rd, Evergreen, CO, United States

    A 5K fundraiser for Clear Creek Cross Country in the mountains just west of the Denver area.

    $30.00

  • The Hero’s Journey 5K

    7/20 Memorial 15151 E. Alameda Pkwy, Aurora, CO, United States

    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

    Kyffin Elementary 205 Flora Way, Golden, CO, United States

    Please join the Westernaires for the Spirit of the West 5K run / walk and 1K Family Fun run on July 31st in Golden, CO.

    $30

  • Steamboat Lake Sprint Triathlon

    Steamboat Lake State Park 61105 RCR 129, Clark, CO, United States

    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 […]

    $85 – $135

  • Summit 200

    Tenderfoot Apartments 1515 Lone Pine Rd, Keystone, CO, United States

    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 […]

  • Wild West Relay

    Budweiser Tour Center 2351 Busch Dr, Fort Collins, CO, United States

    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

    Stanley Park 380 Community Dr, Estes Park, CO, United States

    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

    Stanley Park 380 Community Dr, Estes Park, CO, United States

    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

    Rio Grande Park Aspen, CO, United States

    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

    Town of Fairplay Beach Beech Rd, Fairplay, CO, United States

    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

    Cottonwood Creek Park 3920 Dublin Blvd, Colorado Springs, CO, United States

    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

    Barbara Davis Center for Diabetes 1775 Aurora Ct., Aurora, CO, United States

    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

    Loudy Simpson Park 1009 S Ranney St, Craig, CO, United States

    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

    La Plata Campground CR 124, Durango, CO, United States

    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

    Highland Heritage Park 9651 S Quebec St, Highlands Ranch, CO, United States

    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

    Courtney Ryley Cooper Park 2350 Colorado Blvd, Idaho Springs, CO, United States

    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

    Sloan's Lake Park 1700 Utica Street, Denver, CO, United States

    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

    Mount Saint Francis of Assisi 2650 Parish View, Colorado Springs, CO, United States

    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

    Great Lawn Park 101 Yosemite St, Denver, CO, United States

    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

    Cottonwood Park 8830 Apache Plume Dr, Parker, CO, United States

    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

    Basham Park 13 S Main St, Creede, CO, United States

    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

    Willow Creek Reservoir Co Rd 40, Granby, CO, United States

    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 […]

  • Bound for Boston Marathon

    Northfield High School 5500 Central Park Blvd, Denver, CO, United States

    Have you been dreaming of running Boston?  Need to shave a few minutes off your time to qualify?  Looking for the perfect course to set a PR?  Regardless, if you […]

  • Stagecoach Gravel Triathlon

    Stagecoach Reservoir 25500 Co Rd 14, Oak Creek, CO, United States

    We didn't get the chance to launch this race in 2020, but that didn't diminish our passion for this brand new style of triathlon!  To say this race is “unique” […]

  • Dirty Dozen Trail 10K

    Alder Park 850 Alder Ave, New Castle, CO, United States

    New Castle Trails’ 2026 Downvalley Dirty Dozen is a reimagining and celebration of trail running, mountain biking, music, and community. The weekend is full of fun including live music from regional bluegrass […]

  • Eltuck Valley 5K

    Lory Summer Trail Series
    Lory State Park 708 Lodgepole Dr, Bellvue, CO, United States

    Join us each Tuesday evening in August for a fun series of shorter midweek trail races. Our goal is to offer a fun, low-key series of races designed to give […]

    $25

  • Eldorado Springs Run for the Cure

    Eldorado Canyon State Park 294 Artesian Drive, Eldorado Springs, CO, United States

    Founded in 1979, the Eldorado Run for the Cure is the longest operating charitable footrace in the State of Colorado. All proceeds from the annual four-mile run benefit the Colorado […]

    $30

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