All-Out Kooky-Spooky

The All-Out Kooky-Spooky is a festive running event taking place on November 2, 2025, at Jefferson County's NAAC Stadium in Golden, Colorado. This annual race features a variety of distances, including a Half Marathon, 10K, and 5K, as well as virtual options for participants who prefer to run remotely. The event celebrates Halloween with a costume contest and offers a scenic course along Arvada's Blunn Reservoir via the Ralston Creek Trail, suitable for runners of all abilities.

Participants can enjoy on-course support, free parking, and personalized keepsake bibs, making it a fun and engaging experience for everyone involved. Visit the organization's website for the most recent information.