The Great St. Louis Halloween Race

The Great GO! Halloween Race

The Great GO! Halloween Race is a two-day running event produced by GO! St. Louis in Eureka, Missouri, held at Kircher Park on October 24–25, 2026. The event features multiple distances that include a dog-friendly one-mile walk called the Great PUPkin Run and a family-oriented fun run. Costumes are encouraged and a post-race costume contest is part of the program, with prizes provided by local businesses.

Distances offered:

• Half marathon
• 10K
• 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. The race includes post-race treats and beer service for participants over 21 in a Trick-or-Treat Village at Kircher Park. Pets are allowed only in the Great PUPkin Run; animals on other race courses will be removed and disqualified. Baby joggers and strollers are permitted in the 1 mile fun run, 5K and 10K if started near the back of the field.

Awards include pumpkin pies for the top three finishers in each age group for the Half Marathon, 10K and 5K, and prize money for the top three male and female finishers in the 10K and Half Marathon. Race-day parking is available at nearby lots and along S Outer Road. Visit the organization's website for the most recent information.

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