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  • WeldWerks Brewing 5K

    Colorado Brewery Running Series
    Weldwerks Brewing Co 508 8th Ave., Greeley, CO, United States

    Join us for the WeldWerks Brewing 5k & 10k on July 18, 2026. This fun run event starts and ends at this awesome taproom in Greeley. Run, walk, jog - […]

  • Gastro-Dash 10K

    Roberts Lake Park 1035 N 7th St, Berthoud, CO, United States

    The Berthoud Gastro-Dash 10K is not just a footrace; it’s an epic, hilarious test of both speed and stomach, challenging runners to tackle a 6.2-mile course punctuated by mandatory food […]

  • TransRockies Run

    Leadville 124 E. Sixth Street, Leadville, CO, United States

    The TransRockies Run (Pass to Pub) is a trail running stage race also known as “Summer Camp for Big Kids”! A three stage race traversing the continental divide between Hope […]

  • Barr Trail Mountain Race

    Cog Railway/Barr Trail 515 Ruxton Ave, Manitou Springs, CO, United States

    The Barr Trail Mountain Race is one of the Front Range’s historic summer mountain running events. The 12.6-mile course begins at the Cog Railway Station (6,570 ft) in Manitou Springs, Colorado, ascends […]

  • Donor Dash

    Washington Park - Denver 701 S Franklin St, Denver, CO, United States

    A 5km Run/Walk to honor, recognize, and celebrate those whose lives have been touched by organ donation.

    $17 – $60

  • Kendall Mountain Run

    Memorial Park - Silverton 1800 Greene St, Silverton, CO, United States

    Meet the mountain this summer in Silverton, Colorado! The Kendall Mountain Run starts in downtown Silverton and traverses jeep roads to within a final 300 vertical foot scramble to the […]

  • Floyd Hill Dash

    Game Check Park 970 E Idaho Springs Rd, Idaho Springs, CO, United States

    Calling all adventurers and nature lovers! It's time to cool down, head to Idaho Springs for the Floyd Hill Dash 5k! Picture yourself surrounded by breathtaking mountain views, crisp fresh […]

  • Never Summer Ultra

    State Forest State Park 56750 CO-14, Gould, CO, United States

    The Never Summer 100km & 60km will take place almost entirely within the boundaries of State Forest State Park and run between the Never Summer Mountains on the northern border […]

    $175 – $440

  • Pikes Peak Ultra

    Bear Creek Regional Park 245 Bear Creek Road, Colorado Springs, CO, United States

    Pikes Peak Ultra was created in 2015 to showcase some of the very best trails in Colorado Springs.  As a teenager, RD Justin Ricks trained on these trails and dreamed […]

  • Staunton State Park 10M

    Evergreen Trail Race Series
    Staunton State Park 12102 S Elk Creek Rd, Pine, CO, United States

    Come run with us in amazing Staunton State Park! This race day will offer both a 5k and 10 mile race coursing through beautiful Staunton State Park. Play fun games […]

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