Event details subject to change. Please confirm all information via event website.
Canceled Sloan’s Lake Search Party Marathon
Sloan's Lake Park 1700 Utica Street, Denver, CO, United StatesTHE SUMMARY Did you know that the loop around Sloan's Lake in Denver Colorado is almost perfectly 2.62 miles around? Join us as we go around the lake every hour on the […]
Nun Run Half Marathon
deKoevend Park 6315 S. University Blvd., Centennial, CO, United StatesDo you support life at all stages from conception until natural death? Do you believe every human being should be treated with the utmost dignity and the respect they deserve? […]
Canceled Pony Express Trail Run
Rampart Reservoir Rainbow Gulch Trailhead, Woodland Park, CO, United StatesThe Pony Express is a 16 mile trail run around Rampart Reservoir. Come out and enjoy the single track, running creeks, wildlife, and Colorado's autumn glory.
Spooky Sprint Half Marathon
Chatfield State Park 11500 N Roxborough Park Road, Littleton, CO, United StatesJoin us for the annual Spooky Sprint 5k/10k & Half Marathon! A fun, Halloween-themed event that is perfect for the whole family.
El Grito 5K
Auraria Jordan Student Center 890 Auraria Pkwy, Denver, CO, United StatesEl Grito 5K (3.1 mile run & walk) on the Auraria Campus, start and finish at the Jordan Student Success Building including, a kids fun run and post race fiesta. […]
9/11 Heroes Run
Great Lawn Park 101 Yosemite St, Denver, CO, United StatesThe 9/11 Heroes Run is a 5k race honoring our heroes: those lost on September 11th and in the wars since, as well as the veterans, active duty, first responders, […]
Mighty Marmot Kids Trail Race #2
Miller Ranch Open Space 1060 Ed6, Minturn, CO, United StatesCome join the Vail Recreation District for the 3rd Annual Mighty Marmot Kids Trail Race Series! Youths ages 4 to 10 are welcome to participate. Chose between 1 or 2 miles* to compete […]
Pikes Peak Ascent
Memorial Park - Manitou Springs 502 Manitou Ave, Manitou Springs, CO, United StatesThe 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 StatesA 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
Copper Mountain Resorts 184 Copper Circle, Frisco, CO, United StatesThe 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 […]
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.