The Great St. Louis Halloween Race

OCT
24-25
2026
This Halloween themed running weekend in Eureka, Missouri, offers races from a half marathon to a 1-mile fun run and a costume dog walk. Participants are encouraged to dress up for the occasion and can enjoy post race treats. The event spans two days in late October.
24-25 Oct 2026
13 miles 10 kilometers 5 kilometers

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Event Overview

The Great GO! St. Louis Halloween Race is a multi-day running event taking place in late October in Eureka, Missouri. It offers a series of races and a themed dog walk.

Available Races

The event includes several race distances and a virtual option. The available events are:

  • Half Marathon
  • 10K
  • 5K
  • 1-Mile Fun Run
  • The Great PUPkin Run (a 1-mile costume dog walk)
  • Virtual Halloween Race (covering Half Marathon, 10K, 5K, and Fun Run distances)

Event Details

The races are held over two days. The 5K, 1-Mile Fun Run, and dog walk are scheduled for the first day. The Half Marathon and 10K are scheduled for the following day. There are age requirements for some events: the Half Marathon is for participants aged 14 and over, the 10K for ages 12 and over, and the 5K for ages 6 and over.

The event has a Halloween theme, encouraging costumes. A costume contest is part of the program. Post-race amenities are planned to include candy and, for participants over 21, beer from 4 Hands. A festival area in Eureka's business district is also mentioned. Visit the organization's website for the most recent information.

13 mi
Half Marathon
10 km
10k
5 km
1-Mile Fun Run
The Great Pupkin Run (1-Mile Costume Dog Walk)
Virtual Fun Run
Virtual Half Marathon
Virtual 5k
Virtual 10k