The Great St. Louis Halloween Race
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The Great GO! Halloween Race
The Great GO! Halloween Race is a two-day race weekend held in Eureka, Missouri at Kircher Park on October 24 and 25, 2026. The event offers multiple distances and a family-friendly atmosphere with seasonal elements and community partnerships.
Distances include:
- Half marathon (13.1 miles)
- 10K (6.2 miles)
- 5K
- 1-mile fun run
- 1-mile costumed dog walk (Great PUPkin Run)
Participants receive a premium long sleeve shirt, a festive finisher medal, a digital finisher certificate, and a post-race treat bag. Costumes are encouraged and a costume contest is part of the event. Post-race activities in Kircher Park include a Trick-or-Treat Village, post-race candy treats, and Schlafly beer available for participants aged 21 and over. GO! St. Louis partners with local businesses for event amenities and community elements.
The Great PUPkin Run is a one mile run or walk for pets and their humans; leashes are required and a puppy costume contest is offered with prizes and a finisher medal for pups. Race weekend information covers parking, street closures, packet pickup, and results. Course maps are provided for the half marathon, 10K, and 5K. Visit the organization's website for the most recent information.
