D’Evelyn Dash 5K/2K
D'Evelyn High School 10359 West Nassau Avenue, Denver, CO, United StatesThe D'Evelyn DASH is our BIG Kick Off to the school year and also a key fundraiser for the D'Evelyn Education Foundation (A 501(C) 3 NON-PROFIT.) Proceeds from the DASH benefit arts, activities, athletics, and academics at D'Evelyn Jr/Sr High School. Help us keep this tradition alive by participating in the 2021 D'Evelyn DASH In Person […]
Arches Marathon
Behind the Rocks Trailhead Moab, UT, United StatesStarted 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 event. The new course features beautiful red rock formations, views of the snow covered La Sal Mountains and the awe inspiring Behind the Rocks Wilderness […]
Above the Clouds Ultra
Woodland Park Middle School 600 E Kelley's Rd, Woodland Park, CO, United StatesExperience 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 StatesRun, 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 […]
Castle Rock Trail Festival
Phillip S. Miller Park 1375 West Plum Creek Pkwy, Castle Rock, CO, United StatesWelcome 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 StatesJoin 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 StatesRace 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 StatesHi 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 StatesRace 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 StatesJoin us for the annual Spooky Sprint 5k/10k & Half Marathon! A fun, Halloween-themed event that is perfect for the whole family.
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.