Colorado Runner - Colorado's running news, events and results source

Join the Vail Valley Charitable Fund on Saturday, July 8, 2023, for the exciting return of the annual LG Tri, a sprint triathlon in the beautiful and spacious Vail Valley town of Gypsum! They will also host the annual Kids Tri, so bring the whole family!

Excited family members and thousands from Boulder and beyond gathered at Folsom Field on Monday to welcome and congratulate finishers of the 43rd Bolder Boulder.

The Colfax Marathon, presented by Cigna, welcomed a record 21,000 runners to its annual spring marathon weekend this year. Denver’s largest running event and only marathon weekend took place May 19-21, 2023.