The Great St. Louis Halloween Race

OCT
24-25
2026
A two-day Halloween weekend in Eureka, MO with races from a 1-mile fun run and dog walk to a half marathon, costume contests, post-race treats and age-group awards.
24-25 Oct 2026
13 miles 10 kilometers 5 kilometers

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The Great GO! St. Louis Halloween Race

The Great GO! St. Louis Halloween Race is a two-day running event in Eureka, Missouri centered at Kircher Park. The weekend offers multiple distances and a themed festival atmosphere that includes a Trick-or-Treat Village, post-race treats, and a costume contest held for each distance.

Available distances:

  • Half Marathon (13.1 miles)
  • 10K (6.2 miles)
  • 5K (3.1 miles)
  • 1-Mile Fun Run
  • The Great PUPkin Run - 1 mile costume dog walk

Participants receive a premium long sleeve shirt, a festive finisher medal, and a digital finisher certificate. Post-race amenities include candy and a post-race treat bag; 4Hands beer is available for participants aged 21 and over. Packet pickup takes place at the GO! St. Louis office and at Kircher Park on race weekend. All parking is directed to Eureka High School, with complimentary shuttles transporting participants and spectators between the high school and the race site.

Event rules and services include enforced time limits for each distance, allowance of strollers in the 1-mile, 5K and 10K with stroller starters asked to begin at the back, and a policy that pets are only allowed in the Great PUPkin Run. Awards include pumpkin pies for top age-group finishers and prize money for the top three men and women in the 10K and half marathon. Visit the organization's website for the most recent information.

13 mi
Half Marathon
10 km
10k
5 km
Great Pupkin Run
1-Mile Fun Run
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