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

  • Far Out 3/4 Marathon

    Chatfield State Park 11500 N Roxborough Park Road, Littleton, CO, United States

    We host one race per month from November to March.  All races are at Chatfield State Park and start at 9:00 am on Saturday mornings.  Check-in starts at 8:15 am.

  • Lucky Lyons 5K/10K

    Bohn Park 199 2nd Ave., Lyons, CO, United States

    Ready to start your St. Patrick’s celebrations off with the wind at your back? Grab your luckiest green running gear and join us March 9th on the beautiful paths of Lyons, Colorado! There will be 5K and 10K races for your whole clan to enjoy. Join us at the afterparty at Main Stage Brewing and […]

  • Winter’s End Snowshoe Races

    Granby Ranch 1000 Village Rd, Granby, CO, United States

    The Winter’s End Snowshoe Races is an exciting winter running adventure that takes place at the beautiful Granby Ranch Resort in Granby, CO. The races are open to runners of all abilities, from beginners to experienced athletes, and offer a unique opportunity to enjoy the beautiful snow-covered landscape while staying active and healthy during the […]

  • Lucky Leprechaun 5K

    Twisted Pine Brewing Company 3201 Walnut St, Boulder, CO, United States

    Join us on Sunday March 17th, for our Lucky Leprechaun 5K Fun Run taking place on St Patrick’s Day at Twisted Pine Brewing Company - 3201 Walnut St Suite A, Boulder, CO 80301. The Lucky Leprechaun Fun Run celebrates the origins of Saint Patrick's Day, or the Feast of Saint Patrick, which is a cultural […]

    $35
  • City Park Circuit

    City Park - Denver 1700 N York St, Denver, CO, United States

    Denver Athletics brings you the Denver Park Circuit Series- Three races at Denver's iconic city parks with the same format: One Lap As Fast As You Can Go!  Spring- The City Park Circuit Summer- The Cheesman Park Circuit Fall- The Wash Park Circuit Become a Denver Athletics Road Racing Member ($100) or Full Member ($175) and get free entry […]

  • RMRR Spring Marathon Training Series #1

    Platte River Trailhead Park Colorado Blvd and E 88th Ave, Thornton, CO, United States

    These Marathon training races are geared towards people training for spring marathons. They are supported runs with aid stations and are timed and scored. There are both 10 mile and 20-mile distances for people who are training for either a half marathon or a full marathon. Come and join us for a fun, competitive training […]

  • 5K Raptor Run

    Barr Lake State Park 13401 Piccadilly Road, Brighton, CO, United States

    Please come run/walk, being your dog too if you want at Barr Lake State Park Have fun! Bring a friend. Sign up on Running Guru or go to Friends of Barr Lake website.

    $35.00 – $40.00
  • PPRR Nielson Challenge

    PPRR Nielson Challenge

    North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United States

    Race Format The first time you run this event, you'll establish a base time for yourself. This base time is used to generate a handicap time. The handicap time is calculated using an algorithm developed by Bob Royse, and it's geared to favor a beginning runner and the slower runners. Click here for an explanation of the […]

  • Mav Day 5K

    Foster Field House - CMU 905 Mesa Ave, Grand Junction, CO, United States

    Lace up your sneakers and get ready for an epic, one-of-a-kind 5k experience! Join us for our 2nd annual 5k that supports student scholarships. Every penny raised will be donated to High 5 a Mav, our annual community giving campaign that raises money to provide scholarships to current students. You won’t want to miss this exciting […]

  • Avery Spring 5K

    Avery Brewing Company 4910 Nautilus Ct N, Boulder, CO, United States

    Join us for The Avery Spring 5k @ Avery Brewing on April 6, 2025, for a 5k-ish, fun run event that starts and ends at this awesome taproom in Boulder. Run, walk, jog - whatever goes! Complete the course and celebrate with us and a FREE, local craft brew at the finish line. Start windows […]

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