Ugly Sweater 5K - Denver

The Ugly Sweater 5K in Denver is a festive running event that invites participants of all ages to join in the holiday spirit at Washington Park. Scheduled for December 21, 2025, the event features a flat and fast 5K course, encouraging runners and walkers to don their most outrageous holiday sweaters adorned with tinsel, bows, and other festive decorations. All finishers will receive a unique ugly sweater medal, a themed shirt, and access to a finish line expo with vendors, food, and cookies.

This fun event promises to be a delightful way to celebrate the season while staying active. Visit the organization's website for the most recent information.