The Fast and the Curious 5K/10K
Santa Rita Park Camino Del Rio, Durango, CO, United StatesThe Durango and Cortez Adult Education Center is delighted to announce our annual fun run! The Fast and the Curious is a 5k/10k run that not only celebrates physical fitness […]
Jeffco Steps Up 5K
Creighton Middle School 50 S Kipling St, Lakewood, CO, United StatesJoin Jeffco Employee Wellness and the Jeffco Foundation on Saturday, August 17th at 8am for the inaugural Jeffco Steps Up 5K. This is a FREE walk/run 5K for all Jeffco […]
Valley 5000
Mehaffey Park 3285 W 22nd St, Loveland, CO, United StatesWith over 300 runners expected and even more spectators, this will be an amazing year for the 39th Valley 5000, hosted by Sweetheart City Racing. This run/walk is scheduled to […]
Miles for Migraine 5K
Great Lawn Park 101 Yosemite St, Denver, CO, United StatesMiles for Migraine will host its annual 2-mile Walk (or Intentional Movement of your choice), 5K Run and Relax Denver Event. This event is a fundraiser for Migraine & Headache […]
MMXC 5k Fundraiser-Staunton
Staunton State Park 12102 S Elk Creek Rd, Pine, CO, United StatesPlease join us in raising funds for the Non-Profit... Mountain Movers Kids Youth running club! The course is mostly a dirt, groomed trail at beautiful Staunton State Park. We will […]
Grizzly 2 Mile
Thunder Ridge High School 1991 W Wildcat Reserve Pkwy, Highlands Ranch, CO, United StatesEvery year TRXC hosts a race to begin the season and celebrate ThunderRidge High School Cross Country. This season we will be holding a Grizzly 2-mile on the ThunderRidge campus […]
Buffalo Run 5K
Grand Lake Center 301 Marina Dr, Grand Lake, CO, United StatesHeld during Grand Lake's iconic Buffalo Days weekend, the Buffalo Run 5k route passes through the charming town of Grand Lake, along the scenic shores of Colorado's highest and deepest […]
Erie Half
Reliance Park 900 Weld County Road 1.5, Erie, CO, United StatesJoin us for the Erie Half and 5k! The Hometown Race Series features half marathons and 5k distance events in outlying communities outside the Denver and Boulder metro areas. LOOK […]
Dash for Democracy 5K
Cheesman Park 1601 Race St., Denver, CO, United StatesJoin us for the 2nd annual Dash for Democracy! Meet the Denver Democrats, candidates and elected officials and join us for a run (or walk) and food. Registration begins at […]
Outdoor Divas Triathlon
Union Reservoir 461 County Road 26, Longmont, CO, United StatesThe Outdoor Divas Sprint Triathlon on August 21st, annually awarded best women's event in Colorado by Competitor Magazine, is the all women's triathlon you've been waiting for! We intentionally keep […]
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.