Friday, December 11, 2026 – Saturday, December 12, 2026 · Start times 10:10 AM – 8:30 PM
Carpenter Park, 3498 E 112th Ave, Thornton, CO
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Bundle up for the WinterFest 5K & Fun Run at Carpenter Park, where a chip-timed 5K and a family-friendly ¾-mile stroll both end with a collectible WinterFest mug you can fill with a warm drink at the finish line. After you cross the line, stick around for Thornton’s full WinterFest celebration, complete with holiday activities for all ages. It’s a low-pressure, high-spirit way to get moving and soak in the season.