There are 298 running races in Colorado in 2026 across 90 cities. The next upcoming race is the Raising the Barr in Brighton on September 5. Popular distances include 5K races, half marathons, trail runs.

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Colorado Springs 124 Denver 74 Centennial 55 Fort Collins 44 Littleton 33 Boulder 25 Arvada 22 Loveland 20 Aurora 20 Pueblo 19 Westminster 16 Thornton 14 Durango 14 Steamboat Springs 13 Buena Vista 11 Highlands Ranch 10 Golden 10 Aspen 9 Louisville 9 Bellvue 9 Parker 9 Windsor 9 Greeley 8 Crested Butte 8 Grand Junction 7 Longmont 7 Idaho Springs 6 Brighton 6 Canon City 6 Frederick 6

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