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

  • Audi Power of Four Trail Race

    Aspen Mountain 601 East Dean Street, Aspen, CO, United States

    The Audi Power of Four Race Series is a premier endurance race series utilizing the unique and amazing terrain of each of the four Aspen Snowmass mountains. Each race is […]

  • Silverton Alpine Marathon

    Memorial Park - Silverton 1800 Greene St, Silverton, CO, United States

    Experience the best of the San Juan Mountains with an 8 miler, a marathon, or a 50 kilometer run along the Alpine Loop past the historic mining ghost towns of […]

  • Kids’ TRY-athlon

    H2O'Brien Pool 10795 Victorian Dr, Parker, CO, United States

    This event is all about fun over competition. Boys and girls of all ability levels show their skills in three events: swimming, biking and running. Come on, kids, TRY it […]

  • Mountain Swim Series II

    Carter Lake 971 N County Rd 31, Berthoud, CO, United States

    The crossing is at Carter Lake, Colorado. Situated at just below 5800 feet, this nearly 3-mile swim is located in one of the most picturesque lakes in Colorado. Cash prize […]

  • 719 Challenge 10K

    Goose Gossege Park 3950 Mark Dabling Blvd, Colorado Springs, CO, United States

    The 719 Challenge run will be the official 10-kilometer (6.2 mile) run of the Rocky Mountain State Games, and, a medal event. The course will feature a mix of road […]

  • Tri Boulder

    Boulder Reservoir 5565 N 51st St, Boulder, CO, United States

    ‘The Beast’ Long Course distance will be back for its second year! As one of Colorado’s most popular summer triathlons, Tri Boulder offers many different multisport race distances, all in […]

  • Thumbs Up Summer Slam

    Thumb Open Space 101 Peak View Drive, Estes Park, CO, United States

    Repeating 2km out-and-back laps on the Thumb Open Space trail, 540ft of vertical gain each. Start at 7:10am, finish at 7:10pm. Sunup to sundown. Collect a poker chip at the […]

  • Toni’s Trot 5K

    La Salle Community Center 101 Todd Ave, La Salle, CO, United States

    The Town of LaSalle will host the 36th annual Toni’s Trot. This event kicks off a full day of celebration this community knows as “LaSalle Days”. Proceeds from the run […]

  • Festival in the Clouds Firefighter 5K

    Alma City Park 59 Buckskin St, Alma, CO, United States

    Start your morning the Alma way — with a little fresh mountain air, some movement, and a big stack of pancakes. Join us for the Firefighter 5K, a laid-back community […]

    • 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: 47