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Science Stride 5K
Boulder Reservoir 5275 Reservoir Rd, Boulder, COThe Science Stride 5k brings together our community for a common cause: Inspiring the next generation of scientists! This event provides an excellent opportunity for everyone who believes in the …
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 …
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 …
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 …
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.
DU Dash
Palmer LakeJune 9th marks the inaugural IN-PERSON DU Dash hosted by Colorado Ducks Unlimited on the Santa Fe Trail at Palmer Lake. Check out all the race information here.
Highlands Ranch Happy Hour Half K
Looking for something to do with the whole family on Father's Day Weekend? Look no further than the Happy Hour Half K on Friday, June 14th, starting at 6:00 p.m., …
That 80’s Run
Clement Park 7306 W Bowles Ave, Littleton, COGo back in time with That 80s Run! Bring the entire family....starting at 5:00pm our 5k and 10k Fun Run will start followed by the kids .80 Mile Run...we will …
Sunset Trail Running Festival
Join us Sunday June 23rd, for the Sunset Trail Running Festival in Gold Hill, Colorado. There will be a 28K (17.4M), 12K (7.7M), 5K and Kids 1K trail race, that …
Independence Day Freedom 5K
Spend this July 4th down in Buena Vista for the Independence Freedom 5K. This unique course, while showing off the beauty of BV, includes approximately 2 miles on paved roads. …