Sunday, December 20, 2026 · 9:00 AM
Washington Park – Denver, 701 S Franklin St, Denver, CO
$30–$40
Colorado Runner Events brings the festive spirit to Washington Park for the Ugly Sweater 5K, a run or walk where participants show off their holiday flair. Finishers get a logo shirt, a medal, and access to food tables and fully stocked aid stations in a party-like atmosphere. As an official BOLDERBoulder Qualifier, the race also hands out awards to overall winners and the top three in each age group.