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  • Revel Rockies

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    The FINAL YEAR FOR REVEL ROCKIES. This incredibly fast and remarkably beautiful downhill road race takes runners from the forests and canyons of the Rocky Mountains to the foothills of …

  • Labor Day Half Marathon

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    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 …

  • Calarat Challenge Trail Running Festival

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    Join us Labor Day weekend for the Calarat Challenge Trail Running Festival. We start the festivities off on Saturday night with a 5K that you can run, walk or hike, …

  • Snow Mountain Ranch Festival

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    YMCA of the Rockies Granby (Nordic Center) 1101 County Rd 53, Granby, United States

    The YMCA of the Rockies in Granby hosts the 12th annual Snow Mountain Ranch Trail Running Festival. Races will include a 50K. 33K, Half Marathon,10K, and 5K. You can also …

  • Bergen Peak 5K and Half Marathon

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    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 …

  • Highlands Ranch Back Country Wilderness Half Marathon

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    2025 marks the 17th Annual Backcountry Wilderness Half Marathon in Highlands Ranch! This highly-anticipated event invites participants to embark on a 13.1-mile trail race through captivating landscapes, encompassing both the …

  • Mountain Ridge Trail Race

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    Mountain Ridge Middle School 10590 Mountain Vista Ridge, Highlands Ranch, CO, United States

    Mountain Ridge takes place near Highlands Ranch primarily on the Douglas County East-West Regional Trail. This gently rolling course will keep the Heart Rate pumping while offering some of the …

  • Platte River Half Marathon & Relay

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    Reynolds Landing Park 6745 South Sante Fe Drive, Littleton, CO, United States

    The Platte River Half Marathon & Relay race is one of the most exciting and popular races in the Denver Metro Area! This race is held annually in Littleton, CO. …

  • Colorado Marathon

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    The Colorado Marathon is an annual race held in the verdant Poudre Canyon, nestled in the picturesque Rocky Mountains, just outside of the beautiful city of Fort Collins. Registration for …

  • Mother’s Day Run

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    Louisville Community Park 955 Bella Vista Dr, Louisville, CO, United States

    The Louisville Trails near old town host the Mothers Day Run in 2026.  This run is all about Fun, Music, Gifts and sharing time with the family! For complete information, …