All-Out Kooky-Spooky
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All-Out Kooky-Spooky - Golden, CO (November 2, 2025)
All-Out Kooky-Spooky is the 14th annual Halloween-themed running event presented by All-Out Multicourse Productions at the Jefferson County NAAC Stadium in Golden, Colorado. Courses run along the Ralston Creek Trail and the shores of Arvada’s Blunn Reservoir, in the foothills near Table Mountain. The event benefits the National Kidney Foundation of Colorado and is described by the organizer as open to a wide range of ages and abilities. The site notes easy access from nearby highways and mentions free parking and on-course support, including allowed dogs.
Events and features
Organizers list in-person and virtual options and several on-course and participant features, including a costume contest, medals, and personalized bibs if registered early.
- Half Marathon
- 10K
- 5K
- VIRTUAL Half Marathon
- VIRTUAL 10K
- VIRTUAL 5K
The 10K is listed as a loop course. Medals are provided for all distances, with free medal engraving available. Full-color keepsake bibs can be personalized if registration occurs at least two weeks before the event. The race is designated as an official BOLDERBoulder qualifying event; finishing times from any distance may be used for BOLDERBoulder qualification. Visit the organization's website for the most recent information.