Arches Marathon

Behind the Rocks Trailhead Moab, UT, United States

Started in 2004 as a fall companion to the popular Canyonlands Half Marathon, Arches Half Marathon has hosted many runners on the road course. In 2021, Arches became a trail […]

Above the Clouds Ultra

Woodland Park Middle School 600 E Kelley's Rd, Woodland Park, CO, United States

Experience the amazing Colorado fall colors, fast and flowing singletrack of Rampart Reservoir and the spectacular sweeping views of America’s Mountain, Pikes Peak, in the inaugural Above the Clouds Ultra!

West Elk Trail Marathon

Crawford State Park - Iron Creek Campground 40468 CO-92, Crawford, CO, United States

Run, walk, and hike your way through the fall foliage of the West Elk Mountains! The West Elk Challenge is a point-to-point trail marathon through the heart of the West […]

$85

Castle Rock Trail Festival

Phillip S. Miller Park 1375 West Plum Creek Pkwy, Castle Rock, CO, United States

Welcome to the Town of Castle Rock’s epic trail event. Come to challenge yourself on the vast ridgeline trail system and enjoy Castle Rock’s local trails. Trail run options range […]

Not So Flatt Breast Cancer Awareness Run

Standley Lake 10200 W 100th Ave, Westminster, CO, United States

Join us for the Not So Flatt Breast Cancer Awareness Walk and Run.  In 2021, my father lost his fight against breast cancer so we have put together an annual […]

Big Waves 5K

Lifetime Fitness - Westminster 397 W 148th Ave, Westminster, CO, United States

Hi Friends of Big Waves! We are looking forward to having everyone back for our family 5k this year! We are going to do a superhero theme, so come dressed […]

Spooky Sprint Half Marathon

Chatfield State Park 11500 N Roxborough Park Road, Littleton, CO, United States

Join us for the annual Spooky Sprint 5k/10k & Half Marathon! A fun, Halloween-themed event that is perfect for the whole family.

Cart to Cart Trail Run

Camp 4 Coffee 4th st and Elk Ave, Crested Butte, CO, United States

10 or 19 mile trail runs at the height of fall colors in Crested Butte.  Fun prizes to winners and random participants. https://www.cbmountainrunners.org

$75

Rim to Rim Royal Gorge Run

Royal Gorge Bridge and Park 4218 Co Rd 3A, Cañon City, CO, United States

Join us for an extraordinary day of running on October 5th, 2024. We will host our annual 5K, an 8-mile trail run, and a half-marathon trail run. After great remarks […]

CMRA Stone House Triple-Cross

Stone House Park 2800 S. Estes St., Lakewood, CO, United States

The race will begin just west of Estes St across from the Stone House Park on Bear Creek in Lakewood. It will head west mostly on dirt trails through the […]

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