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 Elk Mountain range during the peak of fall colors. The race starts on the shores of Crawford Reservoir State Park and travels on gravel roads […]

$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 from the liveBIG 5K to the Ultra Marathon 50K. If you’ve run this trail system before, you know these are some beautiful and beguiling trails. […]

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 race in his name to support everyone who has fought and is still fighting breast cancer.  His last name was Flatt and his battle wasn't […]

PPRR Nielson Challenge

North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United States

Race Format The first time you run this event, you'll establish a base time for yourself. This base time is used to generate a handicap time. The handicap time is calculated using an algorithm developed by Bob Royse, and it's geared to favor a beginning runner and the slower runners. Click here for an explanation of the […]

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 as your favorite good-doer! We will be back at Lifetime Fitness in Westminster (off 144th an I-25). Please reach out if you have any questions […]

PPRR Nielson Challenge

North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United States

Race Format The first time you run this event, you'll establish a base time for yourself. This base time is used to generate a handicap time. The handicap time is calculated using an algorithm developed by Bob Royse, and it's geared to favor a beginning runner and the slower runners. Click here for an explanation of the […]

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 and the high success of our 2022 8-mile trail race, we have decided to convert our half-marathon into a trail race as well, utilizing all […]

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