Join us for The Boulder Road Runners All-Comers Summer Track & Field series! We are back at CU Pott’s Field on a brand new track!! Fun for all, from newcomers of any age racing for the first time to veteran competitors looking to test their fitness, all in a friendly, welcoming environment. We host multiple […]

Friday nights in the summer are made for spending time close to home, enjoying the beautiful weather, and unwinding from the long week. Why go anywhere else but Downtown Castle Rock? Start the night off on the right foot with the First Fridays 5K. Before enjoying the free concert event, get a workout with the […]

Kickoff your GoPro Mountain Games weekend with an evening jaunt on the trails of Vail Mountain. If you’re the kind of person who gets antsy watching the action from the sidelines, the adidas Terrex Après 5K trail run is a great way to get involved and burn some calories over the weekend. It’s a 5K […]

Climb4Change is a unique racing event that offers various timed races on the 200-step Challenge Hill at Philip S. Miller Park. Participants ascend 178 feet at least once in any one of the four climb challenges. There is also a non-timed fun run / walk that families can enjoy together on their own anywhere in […]

Join the Colorado Ovarian Cancer Alliance on June 11th at Denver's City Park for Jodi’s Race, the 2nd largest ovarian cancer run/walk in the country, and to help raise awareness of the signs and symptoms of ovarian cancer. The family friendly event includes a 5K Run/Walk, 1-mile walk, Family Fun Zone, Furry Friends, Expo and Survivor Breakfast.

The Steamworks Half Marathon will take place in the San Juan Mountains on June 10, 2023 . This high-elevation, 13.1 mile race will take place at 6,500 feet above sea level. The course is a point-to-point route. Runners will race down county road 250, alongside the Animas River. The race will finish at the Durango […]

Come up to scenic Elk Meadow Open Space for an exhilarating 5.1 mile trail run. This is a timed event that starts and ends near the Lewis Ridge Trail Head.

Ready to get off the sofa and gallop around Littleton with some friends? Yeah, you are! Come frolic with us at the Unicorn Runner 5k at Clement Park to kick off your summer! You'll earn a sweet tee shirt and a flashy unicorn finisher medal! It's a 5k distance for all, and whether you walk, […]

The Melanoma Research Foundation would like to welcome you to the 2022 Denver Miles for Melanoma 5K! This annual signature event will bring together local melanoma patients, survivors, care partners, supporters and healthcare heroes to fundraise and help continue the fight against melanoma.

A fan-favorite of the GoPro Mountain Games, the Nature Valley Mountain Mud Run is for the good, the bad and the muddy. Perfect for the entire family, a group of friends or even a team outing, the Mountain Mud Run is a fun event where everyone’s a winner — remember, the muddier the better! Experience […]