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

  • All-Out Runapalozza

    Apex Center 13150 W 72nd Ave, Arvada, CO, United States

    As those summer mornings are just beginning to cool, join us for a celebration to end the season and our 11th Annual Runapalooza! From the award winning Apex Center, these 5K, 10K & Half Marathon courses will run west along the 2020 Best of the Best Ralston Creek Trail through Arvada's open spaces and stunning golf […]

  • Boulder Rez Marathon

    Boulder Reservoir 5565 N 51st St, Boulder, CO, United States

    The Boulder Rez Marathon is quickly becoming a Boulder classic! This isn’t just another run around the lake. September temperatures will create the perfect race atmosphere. BBSC will offer a Marathon, ¾ Marathon, Half Marathon, 10K and relay, guaranteeing the perfect distance for you! This popular course will take runners around the Boulder Reservoir on […]

  • Run for the Ring 5K

    Barbara Davis Center for Diabetes 1775 Aurora Ct., Aurora, CO, United States

    he Guild of the Children’s Diabetes Foundation hosts the 11th Annual Run for the Ring 5K Run/Walk and Kids Fun Run, bringing together the type 1 diabetes community and supporters for a morning of fun, movement, and impact. The event will take place on Saturday, August 2, 2025, starting and finishing at the Barbara Davis […]

  • Flying Colors 5K

    Loudy Simpson Park 1009 S Ranney St, Craig, CO, United States

    Join us for an untimed Fun Run/Walk to benefit Hospice in our community.  The run will kick off a fun weekend in conjunction with the Moffat County Hot Air Balloon Festival.  Participants will be splashed with vibrant color along the beautiful trails of the Yampa River at Loudy Simpson Park.  Enjoy live music and soaring hot […]

  • Freedom Fest 5K

    Salisbury Park 11920 N Motsenbocker Rd, Parker, CO, United States

    Hosted by Colorado Veterans Project at Salisbury Equestrian Park located in Parker, Colorado Colorado Veterans Project invites everyone to come together to celebrate Colorado Day and the start to the 150th year as a STATE. Celebrate Colorado Day (Observed August 1st) and your Freedom while helping us raise money for Colorado Veterans.   Supporting Colorado Veterans […]

  • Kennebec Mountain Run

    La Plata Canyon Durango, CO, United States

    The Kennebec Mountain Run is a tough, scenic 15ish-mile trail run through the La Plata Mountains, just west of Durango in southwest Colorado. Some people like to say that KMR is a perfect tune-up for the Imogene Pass Run, but really, Imogene is a perfect cool-down after Kennebec, and a wonderful introduction to the La Platas!

  • Unicorn 5K

    Highland Heritage Park 9651 S Quebec St, Highlands Ranch, CO, United States

    Run, walk, frolic, or gallop The Unicorn 5k & Kids Dash in Highlands Ranch! - 5k FINISHER MEDALS - TIE-DYE UNICORN TEE - COTTON CANDY - COSTUME CONTEST - BALLOON ART - FACE PAINTING If smiles, rainbows, and shimmering FINISHER MEDALS are your thing, then this race is for YOU! EVERY 5k finisher receives a […]

  • Chile Harvest Triathlon

    Socorro City Pool 107 Franciso De Avad, Socorro, NM, United States

    The Socorro Chile Harvest Triathlon has been running for 25+ years!! This race is a 400 m swim in the City of Socorro pool, with a 20 km bike ride through Socorro and New Mexico Tech campus, ending with a relatively flat 5 km run through residential parts of town. The race is well supported […]

  • Walk Like MADD

    Sloan's Lake Park 1700 Utica Street, Denver, CO, United States

    Walk Like MADD is MADD's signature fundraising event to help us raise both awareness and funds to end drunk driving and fight drugged driving. With every step taken and each dollar raised, walkers are supporting MADD’s lifesaving mission to keep our families and communities safe.

  • Hero Hustle Half Marathon

    Weidner Field 6303 Barnes Road, Colorado Springs, CO, United States

    Suit up for the Hero Hustle – the ultimate family fun run! Whether you're zooming through the 5k, taking on the 10k adventure, or challenging yourself with the Half Marathon, this event is all about unleashing your inner superhero. Grab your cape, rally your sidekicks, and race for fun, not speed! With costumes, family-friendly vibes, […]

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