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  • Sheep Creek Triathlon

    Sheep Creek Front Gate 731 River Run Dr., Antonito, CO, United States

    Please join us on Saturday, July 5, 2025 for a morning filled with family fun!  Sheep Creek will be hosting a fun "triathlon" as part of our 4th of July […]

  • Burro Buster 5K

    Hand Hotel & Emporium 531 Front Street, Fairplay, CO, United States

    The Burro Buster 5k is a fun, family friendly, 5k in one of America's highest incorporated towns. Join us in Fairplay on the 4th of July on our run through […]

  • Main Avenue Mile

    Buckley Park 1250 Main Ave, Durango, CO, United States

    Celebrate 250 years of freedom with one MILE race down Durango's historic Main Avenue. Starting at Buckley Park and turning around at the train station, enjoy the opportunity to test […]

  • Vail HillClimb

    Featured Vail Trail Running Series
    Vail's Mountain Haus 292 E Meadow Dr, Vail, CO, United States

    Named Best Trail Race by Colorado Runner Magazine in 2006 & 2011! Join us for the annual Vail HillClimb! The Vail HillClimb tests local, regional and national runners with a […]

  • Hahns Peak Hill Climb

    Steamboat Springs Running Series
    Hahns Peak 64625 County Rd 129, Clark, CO, United States

    This trail race is a new event that started in 2017 at the base of Hahns Peak in North Routt County. Running this course started with a few hardcore North […]

  • Canceled Gold Roots Trail Series #2

    Gold Roots Trail Series
    Courtney Ryley Cooper Park 2350 Colorado Blvd, Idaho Springs, CO, United States

    Run the Mighty ARGO hill this summer in a 4 race series! You will have the option of a short loop (~5 miles, ~750' gain) or a long loop (~9 […]

  • Silverheels Trail Runs

    Como Roadhouse 441 Boreas Pass Rd, Como, CO, United States

    **BIG CHANGES TO SILVERHEELS** HPRS continues to work in earnest on a newly revamped Silverheels Trail Runs experience. Traditionally the Silverheels 100-Mile was held in concert with The Last Call […]

  • Hardrock 100 Endurance Run

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

    About The Run The Hardrock Hundred Mile Endurance Run is an ultramarathon of 100.5 miles in length, plus 33,050 feet of climb and 33,050 feet of descent for a total […]

  • Frisco Duathlon

    Featured
    Frisco Adventure Park 621 Recreation Way, Frisco, CO, United States

    Are you looking for a fun, single track trail challenge this summer? Register for the Frisco Duathlon taking place on Friday, July 10, 2026. The Duathlon will feature trail running […]

  • All-Out Dog Days

    Church Ranch Office Park 10170 Church Ranch Wy, Westminster, CO, United States

    Get ready for some fun in the sun and a great mid-season test of your training as we bring our 11th Annual Dog Days 5K, 10K & Half Marathon! Centrally […]

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