The Great GO! St. Louis Halloween Race
St. Louis's Halloween race offers a festive fall run with costumes and community spirit.
Race Date
Oct 24, 2026
Location
St. Louis, MO
Quick facts
- Date
- Saturday, October 24, 2026
- Location
- St. Louis, Missouri
- Distance
- Half marathon (13.1 mi) + 6.2 Miles, 3.1 Miles, 1 Miles, 13.1 Miles, Virtual Fun Run
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Yes
Highlights
Good For
Atmosphere
Course
The Experience
The Great GO! St. Louis Halloween Race transforms Eureka, MO into a festive fall celebration for runners of all kinds. This event caters to both serious competitors aiming for personal bests on its certified course and families embracing the Halloween spirit with costumes and camaraderie.
Runners can expect a well-supported experience, typical of GO! St. Louis events, with ample amenities. The course itself is designed for speed, featuring minimal elevation change. Post-race, participants can enjoy Halloween treats, local craft beer for those over 21, and a lively festival atmosphere in Eureka's business district, complete with a costume contest.
This race is a popular community event, drawing participants from across the region for a memorable autumn run. The blend of competitive racing and festive Halloween fun makes it a standout occasion for the running calendar.
Race-provided description
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
Course Info
USATF CertifiedCourse Type
Loop Course
Terrain
road
Scenery
Small Town
Surface
Paved
Difficulty
Ultra-Flat
Net Drop/km
+0.05 m
Separation
0.4%
Also Offers
USATF Certified Course
MO24020MU · The Great GO! Halloween Half-Marathon
Relatively flat with minimal net elevation change. Loop course — start and finish are close together.
Quality Score
first year
no finisher counts yet
small race — neutral
needs a few years of results
USATF certified · 3 timing sources · 7 photos
no finisher data yet
no winner time yet
typical high 68°F
Race Day Weather
5-year historical avgStart (Low)
50°
Afternoon (High)
68°
Pleasant conditions — light layers at start, comfortable by finish
0.2"
Precipitation
12 mph
Wind
66%
Humidity
Race Photos
Frequently asked
When is the The Great GO! St. Louis Halloween Race?
The The Great GO! St. Louis Halloween Race is held on Saturday, October 24, 2026, starting at 7:00 AM.
Where does the The Great GO! St. Louis Halloween Race take place?
It takes place in St. Louis, Missouri.
What distances does the The Great GO! St. Louis Halloween Race offer?
The half marathon (13.1 miles), plus 6.2 Miles, 3.1 Miles, 1 Miles, 13.1 Miles, Virtual Fun Run.
Is the The Great GO! St. Louis Halloween Race course flat and good for a PR?
The The Great GO! St. Louis Halloween Race is a ultra-flat, loop course course. The course is USATF-certified, so finish times can be used for qualifying.
HalfRuns editorial — independent, no paid placement.
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