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

Events Search and Views Navigation

Event Views Navigation

Filters

Changing any of the form inputs will cause the list of events to refresh with the filtered results.

Today

  • RMRR 5K/10K

    RMRR Trophy Series
    Riverwalk Ballfields 9830 Riverdale Rd, Thornton, CO, United States

    Everyone – slow, fast, or in-between –  can win  at RMRR Trophy Series races.  With our handicap scoring system, we predict YOUR finish time based on recent running results, giving you a great […]

  • Run Rabbit Run Ultra

    Steamboat Springs Ski Resort 2305 Mt Werner Cir, Steamboat Springs, CO, United States

    The Run Rabbit Run courses are very much like life, in that there are many, many little and not so little ups and downs in between the obvious highs and […]

  • Severance Glow 5K

    Severance Community Park 100 Waterfowl Way, Severance, CO, United States

    Welcome to Severance's Severance Days 5K presented by Severance Middle School the Town of Severance with proceeds benefitting Severance Middle School. Held at the Severance Community Park. Severance Days 5K […]

  • Pikes Peak Ascent

    Memorial Park - Manitou Springs 502 Manitou Ave, Manitou Springs, CO, United States

    The Pikes Peak Marathon, founded in 1956, is the oldest continually held marathon in the United States, taking runners from Manitou Springs, Colorado, to the summit of Pikes Peak at […]

  • Superhero 5K/10K

    Greeley Family FunPlex 1501 65th Avenue, Greeley, CO, United States

    A beloved community tradition, the Superhero Run invites runners, walkers, and families of all ages to suit up in their favorite superhero costumes and race for a cause. With a 5K, […]

  • Run the Rockies Half Marathon

    Featured
    Copper Mountain Resorts 184 Copper Circle, Frisco, CO, United States

    The Run the Rockies Road 10k and Half Marathon will feature the traditional Run the Rockies Road Race course with runners starting near Copper Mountain; runners will follow the paved […]

    $30 – $65

  • All-Out Fallfest

    Church Ranch Office Park 10170 Church Ranch Wy, Westminster, CO, United States

    One of Colorado's favorite trails meets one of its most glorious parks at our 9th annual Fallfest 5K, 10K and half marathon! As the courses wind southwest along Big Dry […]

  • Battle by the Brook

    Camp Shady Brook 8716 S Y Camp Rd, Deckers, CO, United States

    The 9th Annual Battle by the Brook Adventure Race will be held on September 19th, 2026 at Camp Shady Brook, in Deckers, CO. This is our favorite fundraiser! With your […]

  • Blisters & Brews 5K

    Elks Park 236 W Colorado Ave, Telluride, CO, United States

    Blisters & Brews is a 5k Fundraiser Race on the morning of Saturday, September 14, giving Festival attendees the opportunity to exercise before the Festival. Presented by the Telluride Blues […]

  • Miles 4 Madison 5K

    Providence Park 8100 Piney River Avenue, Littleton, CO, United States

    Join us in Sterling Ranch for the Miles 4 Madison 5k/1k fun run. Miles 4 Madison is a 5K/1K fun run sponsored by Sterling Ranch Cab. Miles 4 Madison’s goal […]

    $25

    • Please click here to submit your event for FREE to our online calendar.
    We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
    Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.

    Views: 19