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

  • Saint Patty’s Day 5K

    WestCo Brewing 905 Struthers Ave, Grand Junction, CO, United States

    Wear your greenest green and get ready for a Saint Patrick’s Day themed social event benefiting local non-profit The Gift of Love. Bring the family and your 4 legged best buddies, Kids 12 and under run free. Enjoy the post run festivities including craft brews, hot chocolate and fun fitness games.

    $35
  • Krueger Family Shamrock Shuffle

    Vail Golf Club 1778 Vail Valley Drive, Vail, CO, United States

    The annual Vail Recreation District Krueger Family Shamrock Shuffle short and long races and the kids' fun run will celebrate all things green in the spirit of St. Patrick’s Day! Taking place on the Vail Nordic Center trails, the event includes two race categories - snowshoes and running (with or without traction devices). The race […]

  • COPS Winter Running Series

    COPS 90 Minute Race

    Colorado State Patrol Track 2054 Quaker Street, Golden, CO, United States

    The Colorado Outdoor Pace Series ("C.O.P.S.") is a unique set of races presented by Golden Mountain Runners and Golden Endurance. Race Dates January 7, 2026 - 5K January 21, 2026 - 45 Minute Timed Race February 4, 2026 - 10K February 18, 2026 - 60 Minute Timed Race March 4, 2026 - 15K March 18, […]

  • Canyonlands Half Marathon

    Scenic HWY 128 along Colorado River 36 S 100 E, Moab, UT, United States

    The first Canyonlands Half Marathon was run on May 1, 1976 had just 22 finishers, including a dog. Today, thousands of runners come together in March to enjoy the scenic red rock formations and winding Colorado River that Moab has come to be known for! Running parallel to Arches National Park and the Mighty Colorado, runners […]

  • Kingfisher Half 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.

  • All-Out Spring Fever

    North Area Athletic Complex 19500 West 64th Pkwy, Arvada, CO, United States

    From the base of Table Mountain and Colorado's spectacular foothills, All-Out Multicourse presents our 11th annual Spring Fever from Jefferson County's NAAC Stadium… easily accessible from several nearby highways. Along with its Endless Series sidekick in October… Kooky-Spooky, these 5K, 10K & Half Marathon courses will hug the shores of Arvada's Blunn Reservoir via the Ralston Creek Trail […]

  • Central Park 5K

    Stapleton Central Park 8801 Martin Luther King Jr Blvd, Denver, CO, United States

    Is it spring or still winter? We'll know when we run the Central Park 5k at the end of March! Celebrate the end of winter with us on this flat and fast course in the historic Central Park neighborhood!

  • Behind the Rocks Ultra

    Behind the Rocks Trailhead Moab, UT, United States

    Behind the Rocks Ultra starts and finishes at the Behind the Rocks Trail, along the border of the Behind the Rocks Wilderness Study Area. Moab's last hidden gem; its tall standing Navajo Sandstone domes and fins can be seen from many places along the course. This course traverses some remote trails, and give you the […]

  • Polar Plunge 5K

    Aurora Reservoir 5800 S Powhaton Rd, Aurora, CO, United States

    Are you ready for the COOLEST event of the season! Whether you're a daring plunger, a speedy 5K runner/walker, or a thrill-seeker ready to do BOTH, the Polar Plunge & 5K promises non-stop excitement and heart-pumping fun - all while supporting Special Olympics Colorado. Take the plunge into a chilly pool, dash through the 5K, or double […]

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