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  • Bergen Peak 5K and Half Marathon

    Featured

    Bergen Peak runners will experience the rolling hills of Elk Meadow and the strenuous switchbacks of Too Long Trail. While ascending more then 1,300 feet, runners will peak at a …

  • Byers Peak Stampede

    Featured

    The Byers Peak Stampede is proudly hosted by the Shining Stars Foundation, a local nonprofit that provides outdoor social and recreational programming for children with cancer and their families. All proceeds …

  • PH in the Park

    Featured
    City Park Denver, CO

    2026 marks the 17th year of the pulmonary hypertension (PH) collaborative fundraiser with the University of Colorado Denver, Children’s Hospital Colorado and the Pulmonary Hypertension Association (PHA). The first fundraiser …

  • El Grito 5K

    Auraria Campus 900 Auraria Parkway, Denver, CO, United States

    In 1994, a group of friends with a love for running, founded El Grito 5k to celebrate heritage, recognizing Mexican Independence Day, and with a desire to support students in …

  • Run Like the Wind 5K

    Featured

    Join us in Allenspark, Colorado, at 8,504 feet for the annual Run Like the Wind 5K, Walk Like the Breeze 2K, and our beloved Dog Jog. This isn’t just any race—it’s a scenic journey through …

  • Glow & Roll 5K

    Featured
    Clement Park 7306 W Bowles Ave, Littleton, CO

    Craig Hospital presents Glow & Roll.  Glow & Roll is an inclusive, dusk-time 5K Walk/Run/Roll (with a 1.6-mile option) A glow-filled, twilight experience with lights, music and day-glow swag that transforms the …

  • 4th Annual Roost Rebellion Relays

    Featured
    Washington Park 701 S. Franklin St., Denver, CO, United States

    The Roost Rebellion Relays are back! September 2nd is the date and the action starts at 6pm MDT. SHARP. Assemble your fastest 4 x 1 mile (ish) relay team to …

  • Raise The Barr Ultra

    Barr Lake State Park (Nature Center) 13401 Picadily Rd, Brighton, CO, United States

    Introducing the Raising the Barr Ultra Race. Try to finish as many 10 mile loops around the lake in the first 4 or 10 hours and then switch to 1 …

  • Demon Dash

    Featured
    North Area Athletic Complex North Area Athletic Complex 19500 W. 64th Parkway Arvada, CO 80403, Arvada, CO

    Lace up your shoes and join us for the Demon Dash at its new course at the NAAC! We're excited to bring this course its new home and onto dirt! Whether …

  • Labor Day Half Marathon, 10K and 5K

    Featured
    Salisbury Park 11920 N Motsenbocker Rd, Parker, CO, United States

    Celebrate the last blast of summer at the Labor Day Half Marathon. Sweat your socks off and let summer have its last hooray at Parker’s Salisbury Park, just a few …