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  • 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 […]

  • Sunlight Showdown 5K

    The Sunlight Showdown
    Sunlight Mountain Resort 10901 County Road 117, Glenwood Springs, CO, United States

    Welcome to the Sunlight Mountain Race Series, where mountain air, winding trails, and a vibrant community come together for an unforgettable summer of running. For seven years, our half marathon […]

  • Pearl Street Mile

    Mountain Sun Pub and Brewery 1535 Pearl St, Boulder, CO, United States

    Join Troop Events on Saturday August 6th for the 25th annual Pearl Street Mile, a criterium multi-lapped course that starts on Spruce St, and completes 3.75 laps around the Boulder Court House and up the Pearl Street Mall. This year, the race is the USATF Colorado One Mile Championships! There will be a Kids 800m, Family and Friends 1-Mile, time based 1-Mile waves, Masters 1-Mile races, and Elite Open 1-Mile races.

    $35

  • Chase the Moon Trail Race

    Mountain Vista High School 10585 Mountain Vista Ridge, Highlands Ranch, CO, United States

    Chase the Moon is a 12-hour team relay and solo ultramarathon, run overnight under the light of the full moon in the Highlands Ranch Backcountry trail system (we promise some […]

  • Blue Sky Ascent

    Echo Lake Campground 13264 Chicago Creek Rd, Idaho Springs, CO, United States

    Although the air will be noticeably thin at the starting line, Echo Lake's 10,600 feet of elevation is just the beginning. The climb totals nearly 4,000 vertical feet - much […]

  • Boulder Sunrise Triathlon

    Boulder Reservoir 5565 N 51st St, Boulder, CO, United States

    Join us in celebrating the start of summer in the triathlon capital of the country, Boulder, CO. An athlete favorite with its breath-taking sunrise swim, fast bike and smooth run […]

  • SSPR TRYathlon

    Goodson Recreation Center 6315 S. University Blvd., Centennial, CO, United States

    Swim, bike, run for fun! This is the perfect starting point to try a tri. These races are about completion, not competition. All athletic levels are welcome. The only prerequisite is that you must […]

    $25.00

  • Boulder Sunrise 5K/10K

    Boulder Reservoir 5565 N 51st St, Boulder, CO, United States

    The Boulder Sunrise 10k & 5k Run has a reputation of being one of the most scenic courses around. BBSC will provide runners with a supported course, including plenty of […]

  • July 4th ROCK-IT RUN

    Featured
    Douglas County Event Center 500 Fairgrounds Drive, Castle Rock, CO, United States

    Join Run to Change Lives at the Douglas County Event Center in Castle Rock for the 2nd Annual ROCK-IT RUN 5K, Half Marathon and 1K Little Rock-It RUN (8 years and under). It’s time to start a new tradition on July 4th and feel good about Changing Lives. Save 15% with coupon code CORUNNER.

  • July 4th Fun Run

    Palmer Lake Regional Park 199 County Line Road, Palmer Lake, CO, United States

    Run, skip, hop, gallop, lolly gag or moon walk on July 4th with your friends and family to support Palmer Lake Elementary School at the Annual July 4th Fun Run. […]

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