The Great St. Louis Halloween Race
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The Great GO! Halloween Race - Eureka, Missouri
The Great GO! Halloween Race is a two day event held in Kircher Park in Eureka, Missouri on October 24 and 25, 2026. The weekend includes multiple distances, a costume contest for each distance, and a family friendly finish area called Trick-or-Treat Village in Kircher Park.
Distances offered:
- Half Marathon
- 10K
- 5K
- 1-Mile Fun Run
- Great PUPkin Run 1-mile costumed dog walk
Participants receive a premium long sleeve shirt, a festive finisher medal (including a medal for the pup in the PUPkin Run), a digital finisher certificate, and a post-race treat bag or candy. Beer from 4Hands Brewery is available for participants aged 21 and older in the Trick-or-Treat Village.
Event rules and awards are published for each race. Costume contest winners receive prizes from local businesses. The first three finishers in each age group in the Half Marathon, 10K and 5K receive a pumpkin pie. Prize money is awarded to the top three male and female finishers in the 10K and Half Marathon with amounts of $300, $200 and $100 respectively. Time limits apply to each distance; walking is permitted but participants must follow the event time limit rules. Strollers are allowed in the 1-Mile Fun Run, 5K and 10K with participants asked to start at the back. Pets are only allowed on course during the Great PUPkin Run.
Packet pickup is available the race weekend with Saturday and Sunday locations at Kircher Park. Race day parking options include Eureka Soccer Park, Soetebier Park and nearby street parking. Local street closures will occur on race routes during the event weekend. Visit the organization's website for the most recent information.
