Event details subject to change. Please confirm all information via event website.

Events Search and Views Navigation

Event Views Navigation

Filters

Changing any of the form inputs will cause the list of events to refresh with the filtered results.

Today

  • Castle Rock Trail Festival

    Phillip S. Miller Park 1375 West Plum Creek Pkwy, Castle Rock, CO, United States

    Welcome to the Town of Castle Rock’s epic trail event. Come to challenge yourself on the vast ridgeline trail system and enjoy Castle Rock’s local trails. Trail run options range […]

  • Taco Bell 50K

    Taco Bell 447 S Broadway, Denver, CO, United States

    It has been described as Urban Legend. More mysterious and barking spiders than the Barkley Marathons. The International Taco Bell 50k boasts a higher DNF rate than the famed Leadville […]

  • Rim to Rim Royal Gorge Run

    Royal Gorge Bridge and Park 4218 Co Rd 3A, Cañon City, CO, United States

    Get ready for a ROYALly GORGEous experience! Whether you’re tackling the 5K, the 8-mile trail run, or the half marathon trail run, this event offers something truly special. All three […]

  • Sage Burner Trail Race

    Hartman Rocks Recreation Area Gunnison, CO, United States

    Nestled in the Rocky Mountains, about 2 hours east of Grand Junction and 3 hours west of Denver, lies a small running jewel called Gunnison, Colorado. Visit Gunnison, and you’ll […]

  • Spooky Sprint Half Marathon

    Chatfield State Park 11500 N Roxborough Park Road, Littleton, CO, United States

    Join us for the annual Spooky Sprint 5k/10k & Half Marathon! A fun, Halloween-themed event that is perfect for the whole family.

  • The Ruff Run

    Boyd Lake State Park 3720 N Co Rd 11C, Loveland, CO, United States

    Discover the ultimate Colorado adventure: a thrilling dog-and-runner race (2 miles) that celebrates your passion for running, the unbreakable bond with your pet, and the pure joy of playful challenges. […]

  • Grand Valley Backyard Ultra

    18 Road Trailhead 18 Road, Loma, CO, United States

    This is a true last-man-standing event, and it will go until there is only one runner left, no matter how long it takes. Unlike all other competition race formats, this […]

  • The Pretzel Run

    Louisville Community Park 955 Bella Vista Dr, Louisville, CO, United States

    Oktoberfest in Colorado!! Owned and managed by a Bavarian Race Director.... The Annual PRETZEL RUN will move 8 blocks down to Louisville Community Park for a LARGER BIER GARDEN, LIVE […]

    $35.00

  • Rut Run 5K

    United Methodist Church - Estes Park 1509 Fish Hatchery Rd, Estes Park, CO, United States

    With the Fall Season, Estes Park shines in colors and wilderness experiences! Herds of Elk begin to roam the meadows and open fields; while sounds of bugling Bull Elk call […]

  • I Can 5K

    Carpenter Park 3498 E 112th Ave, Thornton, CO, United States

    You CAN 5k. This event is for EVERY ONE. EVERY BODY. You won't get lost. You won't get forgotten. You'll run a clearly marked 5k loop with multiple portojohns & […]

    • 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.

    Views: 153