The Great GO! St. Louis Halloween Race

The Great GO! St. Louis Halloween Race

Race Date

Oct 24, 2026

Location

St. Louis, MO

The Experience

The Great GO! St. Louis Halloween Race features a half marathon, 10K, 5K, 1-mile fun run and 1-mile costume dog walk – with a special Halloween twist! From the serious road racer to the family dressed head-to-toe in costume completing the race together, this is a can't-miss fall event!  Held in picturesque Eureka, MO and The Great GO! St. Louis Halloween Race will feature partnerships with local businesses, and of course - a top-quality race with all the great things you've come to expect from GO! St. Louis events!  In addition to our line-up of events, runners will be treated to great post-race amenities including plenty of candy (it IS Halloween, after all!), 4 Hands beer for the over 21-participants, and a great festival area in Eureka's business district!  And don't forget to dress in costume - the Great GO! St. Louis Halloween Race Costume Contest will return this year!

Logistics

Race Day

Saturday, October 24, 2026

Start Time

7:00 AM

Giveaway

Unisex Long Sleeve Tech Shirt

Start Location

5029 Northrup Ave, St. Louis, MO, 63110

Directions

Course Info

USATF Certified

Course Type

Loop Course

Terrain

road

Difficulty

Ultra-Flat

Net Drop/km

+0.05 m

Separation

0.4%

Also Offers

6.2 Miles3.1 Miles1 Miles13.1 MilesVirtual Fun Run

USATF Certified Course

MO24020MU · Expires 2034 · The Great GO! Halloween Half-Marathon

Relatively flat with minimal net elevation change. Loop course — start and finish are close together.

Race Day Weather

5-year historical avg

Start (Low)

50°

Afternoon (High)

68°

Pleasant conditions — light layers at start, comfortable by finish

0.2"

Precipitation

12 mph

Wind

66%

Humidity

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