Upcoming 5Ks in Colorado

Endurance Grid lists two hundred twenty 5Ks in Colorado, from July 2026 to July 2027 across 63 cities.

220
Races
63
Cities
13
Sports

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Running races in Colorado

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Frequently Asked Questions (FAQs)

How many 5Ks are in Colorado?+
Endurance Grid's Race Calendar lists 220 upcoming 5Ks in Colorado, in 63 cities, from July 2026 to July 2027.
How long is a 5K?+
A 5K is 3.1 miles (5 kilometers).
Which Colorado cities host 5Ks?+
5Ks in Colorado are held in Centennial, Denver, Colorado Springs, Littleton, Arvada, Westminster, Fort Collins, Pueblo, Thornton, and Aurora, plus 53 other cities.
What other race distances are available in Colorado?+
Beyond 5K, Colorado races cover a wide range of distances. Colorado also has 10Ks, half marathons, and marathons for running races. Additionally, Endurance Grid's Race Calendar also covers other sports, with adventure, road cycling, duathlon, gravel, HYROX, mountain bike, paddle, rucking, running, swimrun, trail running, triathlon, and ultra races of various distances.