Highline Canal Summer Scamper

Bible Park 6802 E Yale Ave, Denver, CO, United States

The third annual High Line Canal Summer Scamper, 5K for All, will take place on the evening of June 25 at Bible Park in Denver. Before the 5K enjoy a free 200m Ditch Dash for kids 8 and under. Then scamper along the Canal – whether that’s running, walking or strolling – with a smile […]

$30 – $45

Sunny Stride 5K

Westminster Westin Hotel 10600 Westminster Blvd, Westminster, CO, United States

Join us for a Fun Run (or Stroll) at the crack of dawn where you will enjoy the trail and the Colorado mountain vistas, not to mention your colleagues and this vibrant community solar community!

Boulder Stroke & Stride IV

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

The Boulder Stroke & Stride enters its 23rd season in 2024, and offers Boulder area athletes a fun 1-lap 750 Meter Swim, or 2-Lap 1500 Meter swim in Boulder Reservoir, followed by a 5k run on the reservoir dam on 8 Thursday evenings (plus one Wednesday evening) throughout the summer. Many participants make their open-water […]

Blue Moon Trail Series II

Pinon Valley Park 5585 Mule Deer Dr, Colorado Springs, CO, United States

The Blue Moon Trail Run is a fun and challenging local race provided by the City of Colorado Springs Parks, Recreation and Cultural Services Department. The 3-time run series is offered on the fourth Friday evenings of May (5K), June (5K and 8K), and July (5K and 10K). In addition to the race series, a Reverse Biathlon […]

Midsummers Night Run

Winter Park Resort 85 Parsenn Rd, Winter Park, CO, United States

Join us for an evening at Winter Park by participating in our Second Annual Midsummer Night's 10k!  This run will begin and end at the base of Winter Park Resort with an elevation gain of approximately 570 ft.  Enjoy a combination of gravel roads and trails on this run. Winter Park Peak to Peak Summer […]

Timberview Trail Run

Lory State Park 708 Lodgepole Dr, Bellvue, CO, United States

Crisp morning air and a summer sunrise in Colorado. YES PLEASE! Join us on the foothills at Lory State Park for a fun & beautiful morning trail race. This run race features three distances (a 10 mile, a 5 mile and a 5K) that are great for just about any level athlete at any age. Run on […]

$20 – $50

Slacker Half Marathon

Strousse Park - Georgetown 6th & Rose St, Georgetown, CO, United States

The Slacker races are always held on the 4th Saturday in June, and in 2025, that means Saturday, June 28th! We’re excited to announce a new change for next year:  wave starts will be enhanced to help ensure a smoother race start. Be sure to watch for this update when registering! We can’t wait to […]

Fallen Officer Fund 5K/10K

Cornerstone Park 5150 South Windermere Street, Englewood, CO, United States

The Fallen Officer Fund of Colorado is a 501(c)(3) non-profit organization which offers financial assistance to the next of kin of any fallen officer acting in the line of duty in the State of Colorado. All proceeds raised stay in Colorado and benefit those in our community who are affected by these tragic and untimely […]

Leadville Trail Marathon

Leadville 124 E. Sixth Street, Leadville, CO, United States

Run through the historic mining district’s challenging old mining roads and trails, and hit a high of 13,185 feet at Mosquito Pass during the Leadville Trail Marathon or Heavy Half Marathon. The views will leave you breathless, if you’re not already.

Pride 5K

Civic Center Park 101 14th Avenue, Denver, CO, United States

The Denver PRIDE 5K enables supporters of The Center on Colfax to raise funds in support of our mission. We provide critically important programs and services to Colorado’s LGBTQ community. 100% of each dollar raised by individual fundraisers goes directly to support our community members--including our youth center, health services, and social support groups. Join the race today!

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