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

  • Loveland Lake to Lake Triathlon

    Loveland High School 920 West 29th St., Loveland, CO, United States

    Loveland Lake to Lake Triathlon has welcomed athletes from Northern Colorado, this entire state, region, country,  and outside the USA for 24 years and we are excited about our 2025 edition. Athletes have ONE OPPORTUNITY each summer to compete at this beautiful venue. Loveland CO~ one opportunity, one time each summer on a Saturday morning […]

  • Red, White and Brew Run

    Raindance National Golf Course 1781 Raindance National Drive, Windsor, CO, United States

    Walk, run or ruck, a 5k, 10k, Half Marathon or 12 Hour Last Man Standing Race to celebrate the Red, White and Brew in Windsor, CO! Starting and ending at the new Hoedown Hill in Water Valley, this race has fun for the whole family! Live music, food, drinks, bouncy houses, face painting and more! […]

  • Elk Meadow Trail Race

    Buchanan Park Recreation Center 32003 Ellingwood Trail, Evergreen, CO, United States

    This 5K race leads runners throughout the rolling hills of Elk Meadow Open Space Park. Runners will start on Pioneer trail and head clockwise around the meadow. The first stretch is a steady downhill along highway 74. From there, runners will weave their way up to where they will run through the trees along the […]

  • Howelsen Hill Trail Run

    Olympian Hall 845 Howelsen Pkwy, Steamboat Springs, CO, United States

    Let the trail races begin!! This is a challenging trail run on the scenic single track trails of historic Howelsen Hill, Steamboat’s outdoor playground. The trails of Emerald are beautiful this time of year with abundant aspen trees and wildflowers. Distances: 8 mile and 4 mile

  • Rayden’s Athletic Friends 5K

    Sergeant Blake A. Harris Skateboard Park 3430 Skateboard Lane, Pueblo, CO, United States

    Join us for a pet-friendly 5K Run/Walk where your four-legged friends are welcome! (All dogs must be leashed throughout the event.) Thanks to our generous sponsors who have helped offset the costs of t-shirts and event organization, your participation fee can go directly where it's needed most - supporting PAWS through donations of food and […]

  • Tails on the Trail 5K

    Salida Steamplant Sacket and G Streets, Salida, CO, United States

    The Tails on the Trail 5K is a family and dog-friendly 5k race with proceeds benefiting the life-saving work of Ark-Valley Humane Society. Race this with or without your dog on May 22nd at Loyal Duke's Dog Park in Salida.

  • Vail Trail Running Series

    Beaver Creek Summer Solstice Trail Run

    Beaver Creek Chophouse 15 W Thomas Place, Beaver Creek, CO, United States

    Coinciding with the longest day of the year, the Summer Solstice 5K/10K trail run is arguably the most enjoyable race in the Vail Trail Running Series. Beginning and ending in the lawn in front of the Beaver Creek Chophouse adjacent to the Centennial lift in the heart of Beaver Creek, Colorado. Keep a look out […]

  • Heart Walk

    Sloan's Lake Park 1700 Utica Street, Denver, CO, United States

    We're all tied to heart disease and stroke in some way, and we must change that. Join your friends, family and co-workers to be a relentless force for a world of longer, healthier lives. By registering for the Heart Walk today, you are taking the first step to save lives. Every walker who joins, every […]

  • Estes Park Backyard Ultra

    Estes Park High School 1600 Manford Ave, Estes Park, CO, United States

    The Backyard Ultra with the views. ​ The Backyard Ultra is a form of Ultra race where runners must complete 4.167 miles in less than one hour, every hour, until only one runner remains to complete a lap. This runner is crowned the winner and only finisher, while all others will be marked as DNF. There is […]

  • Mustang Mile

    West Grand High School 208 N 12th St, Kremmling, CO, United States

    The Mustang Mile is a timed Run/ Walk in Kremmling, Colorado. This event will kick off the Kremmling Days Parade with a route through Main Street. Participants will run this straight downhill course with spectators to cheer them on. Could this be the fastest road mile course in Colorado? Come join us and let us […]

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