The Great St. Louis Halloween Race
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The Great GO! St. Louis Halloween Race
The Great GO! St. Louis Halloween Race is a two day event in Kircher Park, Eureka, Missouri on October 24 and 25, 2026. It offers multiple distances across a festival-style weekend and includes post-race activities held in Trick-or-Treat Village.
Distances offered:
- Half Marathon - 13.1 miles
- 10K - 6.2 miles
- 5K - 3.1 miles
- 1 Mile Fun Run
- Great PUPkin Run - 1 Mile costume dog walk
Registered participants receive a premium long sleeve shirt, a festive finisher medal, a digital finisher certificate, and post-race candy or a treat bag. The event includes a live costume contest for each distance and a separate Puppy Costume Contest for the PUPkin Run. Local vendors and partners provide post-race offerings, including candy and 4Hands beer for participants over 21.
Awards and contest details are published for the weekend. The first three finishers in each age group for the Half Marathon, 10K and 5K receive pumpkin pie. Prize money is awarded to the top three male and female finishers in the 10K and Half Marathon with stated amounts for first through third place.
Operational rules are enforced: specific course time limits apply to each distance, pets are only allowed in the PUPkin Run, strollers are permitted in the Fun Run, 5K and 10K, and refunds and transfers are not permitted. A limited deferral option exists for Half Marathon entrants with medical documentation. Visit the organization's website for the most recent information.
