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  • 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 […]

  • Thumbs Up Vertical Challenge

    Thumb Open Space 101 Peak View Drive, Estes Park, CO, United States

    Rules Beginning at 8am, runners will ascend the Thumb Open Space out and back trail, each lap is 2km with 540ft of vertical gain At the turnaround runners collect 1 […]

  • Sweaty Sweater 5K

    Front Range Freeze
    Foothills Mall 215 E. Foothills Parkway, Fort Collins, CO, United States

    5k Run/Walk – 9:00 am Kid’s 1-Mile – 10:00 am Calling all Ugly Sweaters… We want to see your most hideous, outrageous, bulky and unforgettable UGLY sweater running the Sweaty […]

    $44.35

  • Chasing Santa 5K

    First Tech Federal Credit Union 5725 Mark Dabling Blvd, Colorado Springs, CO, United States

    Celebrate Christmas with a 5k Run/Walk. This holiday event is designed for the whole family. Instead of your race day "T" shirt, you will receive a complete Santa Suit, Pants, […]

  • Catfish Flats

    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.

  • Ugly Sweater 5K

    Colorado Brewery Running Series
    Left Hand Brewing Company 1265 Boston Avenue, Longmont, CO, United States

    Join us for The Ugly Sweater 5k on December 6, 2025, for a 5k-ish, fun run event that starts and ends at this awesome taproom in Longmont. Run, walk, jog […]

  • Jingle Jog 5K

    Mountain Tots Pre-School 236 W 3rd St, Eagle, CO, United States

    Jingle Jog is a fun run event to support Mountain Tots fundraising goals. The event will include a 1K kids fun run and 5K route option for participants. Starting in […]

  • Onesie Dash

    The Tavern at Red Feather Lakes 1078 Ramona Dr, Red Feather Lakes, CO, United States

    Enjoy a scenic little dash in and around Red Feather Lakes, Colorado! Wear your favorite onesie (and layer it underneath if you need extra warmth!). Start at The Tavern at […]

  • Race Of The Santas 1M

    Canteen Tap House 208 N Main St, Breckenridge, CO, United States

    Start the winter festivities in Breckenridge by lacing up your running shoes for the RACE OF THE SANTAS! The race kicks off on Main Street directly in front of the Canteen Tap House (208 […]

  • Tortoise & Hare 6K

    Tortiose & Hare Race Series
    Spring Park 2100 Matthews St, Fort Collins, CO, United States

    The Tortoise & Hare (T&H) is a low-key “handicap” series of seven races that are run monthly from October to April, typically on the first or second Sunday of the […]

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