Featured
Greenland Trail Races
The Greenland Trail Races offer four outstanding distances in southern Douglas County. Run the 4 Miler, the 8 Miler, the 25K, or tackle the 50K ultramarathon, Colorado’s fastest 50K! With …
Loading view.
Running
Featured
Colorado Marathon
The Colorado Marathon is an annual race held in the verdant Poudre Canyon, nestled in the picturesque Rocky Mountains, just outside of the beautiful city of Fort Collins. Registration for …
Featured
Moose Mudder 2024
Altitude Elementary School 27300 E Southshore Dr, Aurora, CO, United StatesPlease join us for the 2024 Moose Mudder! This is a community event that will consist of an untimed 1k fun walk/run and a timed 5k followed by an optional …
Featured
Highlands Ranch Mothers Day 5k
The HRCA Mother's Day 5K is a family-friendly race taking place on Saturday, May 11, 2024. This course is suitable for participants of all levels, whether they are first-time 5K …
Featured
Colfax Marathon Weekend
The biggest running weekend of the year kicks off on Saturday May 18th with the Colfax 5K at City Park. Stick around to catch the Girls on the Run 5K …
Featured
Bolder Boulder 10K
Boulder Boulder, COJoin Colorado’s biggest and boldest Memorial Day tradition.
Featured
Revel Rockies
The FINAL YEAR FOR REVEL ROCKIES. This incredibly fast and remarkably beautiful downhill road race takes runners from the forests and canyons of the Rocky Mountains to the foothills of …
Featured
Mountain Ridge Trail Race
Mountain Ridge Middle School 10590 Mountain Vista Ridge, Highlands Ranch, CO, United StatesThis 11th annual trail race serves as the Summer Series opener. It has quickly become a runner favorite among Endurance Race Series front range events. The rolling hills of this …
Featured
The Steamboat Marathon, Half Marathon and 10K presented by Alpine Bank
Steamboat Springs, CO Steamboat Springs, COThe Steamboat Marathon, voted one of the most scenic marathons in the country by Runners World, has the cozy, friendly appeal that only a town like Steamboat Springs can bring. …
Featured
Flamingo Day 5K
Sloan's Lake 4600 W Bryon Pl, Denver, COJoin us for a fun and festive day at Denver’s Sloan’s Lake Park.