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

  • Race in the Clouds Dirt Festival

    Buckskin Cemetery 227 Buckskin Street, Alma, CO, United States

    Get ready for a weekend of epic outdoor adventure at 10,600 feet in beautiful Alma, Colorado—the highest incorporated town in North America! Whether you love mountain biking, trail running, off-road duathlon, or simply camping under the stars, our grassroots dirt festival has something for everyone. EVENT HIGHLIGHTS! ✅ Mountain Bike Racing (Saturday, June 27) ✅ […]

  • Four Legged 5K

    Platte Canyon Community Church 4954 County Road 64, Bailey, CO, United States

    Come one, come all to the first annual "Four Legged 5k" foot race, organized and hosted by the Bailey Chamber of Commerce and benefiting one of our local non-profit organizations, Peaceworks! Unlike a lot of other races in Colorado, your well-behaved, leashed, four legged friends are totally welcome to join in on the fun! This […]

  • The John Cappis

    Silverton 414 Greene Street, Silverton, CO, United States

    What A free mountaineering jaunt originated by James Varner in honor of the legendary John Cappis, one of the founders of the Hardrock 100. The course gets tweaked from year to year, but here is the fundamental idea: Summit several of the peaks surrounding Silverton Unmarked course (gps track provided) Mostly off-trail Approximately 50k and […]

  • Timberview Trail Run

    Lory State Park 708 Lodgepole Dr, Bellvue, CO, United States

    Crisp morning air and a summer sunrise in Colorado. YES PLEASE! Join us on the foothills at Lory State Park for a fun & beautiful morning trail race. This run race features three distances (a 10 mile, a 5 mile and a 5K) that are great for just about any level athlete at any age. Run on […]

    $20 – $50
  • Alderfer / 3 Sisters 5K/10K

    Evergreen Trail Race Series
    Alderfer Ranch Pavilion 31677 Buffalo Park Rd, Evergreen, CO, United States

    Come run with us in beautiful Evergreen at Alderfer/3 Sisters Park! This race day will offer a both 5k and a 10k race coursing through this amazing park. Play fun games from our rec trailer, visit our sponsors and vendor tents while you wait for your runner to finish! Refreshments and food will also be […]

  • 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 […]

  • Slacker Half Marathon

    Strousse Park - Georgetown 6th & Rose St, Georgetown, CO, United States

    Seize the chance to earn your bragging rights as a true Slacker! Embark on this exhilarating journey starting at the base of Loveland Ski Area, perched at an impressive elevation of 10,630ft. Brace yourself for an unforgettable descent to 8,400ft, followed by post-race festivities in charming historic Georgetown. Picture an abundance of freebies, locally crafted […]

  • Pride 5K

    Cheesman Park 1601 Race St., Denver, CO, United States

    The Denver Pride 5K is more than just a race—it's a powerful way for supporters of The Center on Colfax to make a difference in the lives of Colorado’s LGBTQ+ community. This event serves as a crucial fundraiser, enabling us to provide free essential services, programs, and activities to LGBTQ+ individuals and our allies year-round. […]

  • Trail Town Races

    Mountain Lodge - Ridgeway 373 Palomino Trail, Ridgway, CO, United States

    The Trail Town Races. Hosted by the San Juan Mountain Runners, the event offers sweeping views of the San Juan Mountains and takes place just a short 30-minute drive south of Montrose. The event details include: Date/Time: Location: Distances: Course: Cost: $25.00 What You Get A beautiful course on unpaved county roads through classic Western […]

  • Leadville Trail Marathon

    Leadville Race Series
    Leadville 124 E. Sixth Street, Leadville, CO, United States

    Run through the historic mining district’s challenging old mining roads and trails, and hit a high of 13,185 feet at Mosquito Pass during the Leadville Trail Marathon or Heavy Half Marathon. The views will leave you breathless, if you’re not already.

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