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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 […]

  • 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 Triathlon

    Featured
    Frisco Bay Marina 267 Marina Road, Frisco, CO, United States

    Are you looking for a new challenge this summer? Register for the annual Frisco Triathlon featuring stand-up-paddle boarding, mountain biking, and trail running. This twist on a triathlon is open […]

  • 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 […]

  • LG Triathlon

    Siena Valley Club 1000 Brightwater Club Dr, Gypsum, CO, United States

    Can you keep a secret? Eagle, Colorado, is a special place, and they have a fantastic triathlon that you should not miss. They're calling for triathlon experts, newbies, and everyone in between, including the kids! Join them on July 9th for the 14th Annual LG Tri, a sprint triathlon held in the beautiful Vail Valley town of Eagle.

    $40 – $150

  • Heatwave Half Marathon

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

    5K/10K/Half- Marathon & Relay registration includes a custom bib, designer shirt, and a custom finisher medal! 1 Mile registration is untimed and includes a custom bib, designer shirt, and a […]

  • Pagosa Duathlon

    Turkey Springs area Cnr Turkey Springs & Monument Rds, Pagosa Springs, CO, United States

    The venue of the San Juan National Forest could not be more perfect for the Pagosa Duathlon as athletes trek through aspen groves, grassy fields, and the dreaded rocky Piedra Stock driveway. Join Rise Above Violence on July 10th in Pagosa Springs for this annual event.

    $45

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