
The Great GO! St. Louis Halloween Race is a running race on October 24–25, 2026 in St. Louis, MO, with entry fees from $20 to $65.
From the Organizer
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!
Events
Weather
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
66°
Typical Low
47°
Based on US Climate Normals data from St Louis Sci Ctr, 1 mi from the venue.
Host City
Population
293,109
as of 2023
City Elevation
471 ft
Nearest Airport
STL
St. Louis Lambert International Airport · 9 mi
Time Zone
Central Time
From Endurance Grid
A big city race. Expect multiple lodging options and plenty to do the day before.
Race Location
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at The Great GO! St. Louis Halloween Race, put it on the calendar, and turn “someday” into a start date.
94
Days to train
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From Endurance Grid
Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
2026 Duo Dash
Less than a mile away
The Great Chase
Less than a mile away
35th Annual Run for the Hills
3 miles away
Families Run for Ovarian Cancer ROC Star 5k & 1-Mile Run/Walk
Less than a mile away
Plan your trip
Coming from out of town? There's more to St. Louis than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to St. LouisFrequently Asked Questions (FAQs)
The Great GO! St. Louis Halloween Race
Oct 24, 2026