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  • Summit Trail Running Series

    Summit Trail Running Series IV

    Tom's Baby Trailhead 1283 Gold Run Rd, Breckenridge, CO, United States

    Explore the trails of Breckenridge this summer with the 23rd annual Summit Trail Running Series with each race followed by a post-race party! The Series consists of 5 trail races […]

  • High Lonesome 100

    County Road 321 Nathrop, CO, United States

    The High Lonesome 100 is a high flying endurance race in the Sawatch range of the Colorado Rocky Mountains. With 22,500' of vertical gain and reaching an elevation of 13,150', it's a hell of a course. The race runs in a loop through some of the most beautiful single track in the state, and takes runners on the Continental Divide and Colorado Trail, through 2 ghost towns, over 5 alpine passes, through remote basins, and over soaring ridges. This year's event takes place on July 30th.

  • Aspen Valley Marathon

    Lions Park 101 Midland Ave, Basalt, CO, United States

    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 […]

  • 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 […]

  • 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 […]

  • Canceled Powderhorn Mountain Ultra

    Powderhorn Mountain Resort 48338 Powderhorn rd, Mesa, CO, United States

    The Powderhorn 6 or 12-Hour Mountain Ultra is here to challenge your endurance, strength, and willpower with two exciting options. Whether you're a trail-running/hiking enthusiast or a vertical-climbing beast, we […]

    $170
  • Vail Trail Running Series

    Vail 10K and 5K @10,000 Feet

    Vail Village 292 E Meadow Dr, Vail, CO, United States

    Vail Mountain's Views Won't be the Only Thing Taking Your Breath Away! The 10@10 returns to its original route on Grand Traverse. The race starts 10,000 feet above sea level, on the […]

  • Spring Creek Memorial Trail Run

    Spring Creek Trailhead Steamboat Springs, CO, United States

    This race is held in memory of Patty Brenner Hagberg who was struck and killed by a truck along the lower part of the trail in 1991. This race should […]

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