Get fueled by ghouls — join us for the Great GO! St. Louis Halloween Race!
The Great GO! St. Louis Halloween Race offers a half marathon, 10K, 5K, and 1-mile fun run with a Halloween twist. It’s a must-attend fall event for serious runners and families alike, whether you’re aiming for a personal best or just enjoying the festive atmosphere! Good luck and happy haunts!
Race Weekend Information
Races + Registration
The Great GO! St. Louis Halloween Race in Eureka, MO combines the thrill of a top-quality race with the charm of the picturesque town. Half marathon, 10K, 5K, 1-mile fun run, and 1-mile costumed dog walk distances allow runners of all levels to get into the spooky spirit. Returning this year, the Great PUPkin Run! This 1-mile run/walk is for pets and their humans! Costumes encouraged, leashes required, wagging tails guaranteed. You may even take home some extra swag as part of our Puppy Costume Contest!
GO! St. Louis partners with local businesses to cultivate a unique experience that includes post-race candy treats, Schlafly beer for the over 21-participants, and a chance to relax and socialize in Trick-or-Treat Village held in Kircher Park.
Don’t forget to dress in costume – the Great GO! St. Louis Halloween Race Costume Contest is a haunting highlight returning to the festive event this year!
Take on 13.1 miles of frightful fun! Lace up in your running shoes (maybe even in costume!) and experience a scenic course through Eureka, MO featuring plenty of fun!
This fun and festive race is perfect for runners looking to tackle 6.2 miles while celebrating spooky season. Costumes are encouraged, and the course is filled with plenty of Halloween cheer to keep you moving all the way to the finish line. Stick around afterward for treats, fun and a costume contest—you’ll be running for both speed and style!
Runners and walkers of all ages are invited to hit the course in their best costumes—whether spooky, silly, or downright creative. After you cross the finish line, stick around for our Costume Contest, where prizes will be awarded for the most festive looks. It’s the perfect way to celebrate Halloween with friends and family while getting your miles in. Don’t miss out on this spirited tradition!
Bring the whole family in costume for a festive run (or walk) filled with tricks, treats, and plenty of fun. It’s the perfect way to celebrate the season, stay active, and make memories together!
This 1-mile run/walk is for pets and their humans! Costumes encouraged, leashes required, wagging tails guaranteed. You may even take home some extra swag as part of our Puppy Costume Contest!
GO St. Louis PUPKin Run & Open Door Animal Sanctuary
The GO! St. Louis Halloween Race in Eureka is spooky fun for all—runs, dog walks, costumes & more! Look for our table at the registration site! While registration supports the event, your donation helps the cats & dogs of Open Door Animal Sanctuary. 🐶🐱
Donate to Open Door Animal Sanctuary Today!
Race Weekend
Friday, October 23, 2026
Time: 10:00am-6:00pm
Location: TBD
Saturday, October 24, 2026
Time: 6:15am – 9:00am and 11:00am – 3:00pm
Location: Kircher Park – Eureka, MO
Sunday, October 25, 2026
Time: 5:30am – 7:00am
Location: Kircher Park – Eureka, MO
Race Day Parking
Race day parking will be available at Eureka Soccer Park, Soetebier Park and along S Outer Road.
Saturday Participant Parking
From I-44 Westbound:
Exit at Eureka (exit 264) to Hwy 109
Left on Hwy 109
Left on Augustine Road
Left around bend to continue on Augustine Road
Left onto Williams Road (at horse farm on your left)
Continue until you see Race Parking signs at Eureka Soccer Park or in grass at Soetebier Park.
From I-44 Eastbound:
Exit at Eureka (exit 264) to Hwy 109
Right on Hwy 109
Left on Augustine Road
Left around bend to continue on Augustine Road
Left onto Williams Road (at horse farm on your left)
Continue until you see Race Parking signs at Eureka Soccer Park or in grass at Soetebier Park.
Sunday Participant Parking
From I-44 Westbound:
BEFORE 6:40am
Exit at Eureka (exit 264) to Hwy 109
Left on Hwy 109
Left on Augustine Road
Left around bend to continue on Augustine Road
Left onto Williams Road (at horse farm on your left)
Continue until you see Race Parking signs at Eureka Soccer Park or in grass at Soetebier Park.
AFTER 6:40am
Exit at Eureka (exit 264) to Hwy 109
Follow signage to turn left onto 109, then immediate left back onto I-44 EB.
Exit at the very next exit, Williams Road.
Follow staff directions to parking locations on Williams/S. Outer Road.
From I-44 Eastbound:
To avoid congestion, do not exit at Eureka/109 exit.
Use Williams Road (one further east) Exit.
At Williams Rd, use either parking lots to the south, or street parking to the north.
Race Day Parking
Coming Soon
Street Closures
Saturday, October 24
Williams Road: between Kircher Park and South Outer Rd: 6:30am – 8:00am
S. Outer Road: between Williams turn off and into Rte 66 State Park: 6:30am – 8:00am
Sunday, October 25
Williams Road: between S. Outer Road and Augustine Rd: 6:45am – 7:15am
Augustine Road: between Williams Rd and turnaround point at RC Airfield: 6:45am – 7:35am
Georgiana Sq: between Augustine and Maureen: 6:45am – 7:45am
Maureen Dr: between Georgiana Sq and Wallach Dr: 6:45am – 7:45am
Clara Ct: between Maureen Dr and Wallach Dr: 6:45am – 7:45am
Wallach Dr: between Clara Ct and Forest Hills Dr: 6:45am – 7:50am
Forest Hills Dr: between Wallach and Forest Run: 6:45am – 7:50am
Forest Run: between Forest Hills and Augustine Rd: 6:45am – 8:00am
Augustine Rd: between Forest Run and MO-109: 6:45am – 8:15am
MO-109 at Augustine Rd/Central Ave: 7:15am – 8:15am
Central Ave: between MO-109 and Frisco Ave: 7:00am – 8:30am
Frisco Ave: between Central and Bald Hill Rd: 7:00am – 8:30am
Bald Hill Rd: between Frisco and Dreyer Ave: 7:00am – 8:30am
Interested in a race day vendor space in our finish line area or inserting a flyer into our race bags? Please email kwerner@gostlouis.org for more information.
Costume Contest
After the race, stick around for the costume contest! Costume contest winners will receive prizes from a number of local business including Raising Canes, Dewey’s, St. Louis Cardinals, Swing-A-Round Fun Town, Big River, SLU Billikens, Amp Up Action Park and more!
Our costume contest will be held live at a designated time for each distance.
Saturday, October 24
- 5K: 8:30am
- Fun Run: 9:15am
- PUPkin Run: 9:45am
Sunday, October 25
- 10K: 8:45am
- Half Marathon: 10:00am
Age Group + Overall Awards
The first three finishers in each age group in the Half-Marathon, 10K and 5K receive a pumpkin pie as a special award. Visit the awards tent after the race to see if you are a winner.
Prize money is awarded to the top 3 male & female finishers in the 10K & Half Marathon.
- 1st Place: $300
- 2nd Place: $200
- 3rd Place: $100
Race Results
Sponsors
FAQs
The time limit rules listed below will be strictly enforced and will begin when the last runner crosses the start line. Anyone who falls behind the pace must get into the sag vehicle and be transported to the finish, or move to the sidewalk and obey all traffic signals.
Time limits per distance
- Half Marathon: 3 hours and 15 minutes
- 10K: 1 hour and 30 minutes
- 5K: 1 hour
Absolutely, we love walkers, but we ask that you agree to the time limit rules above.
Yes – for our 1-Mile Fun Run, 5K or 10K race we do allow baby joggers or strollers. Participants are asked to start at the back of the start line area.
No. We love our pets too, but for safety reasons pets are not allowed on the course at any time. Participants that compete with a pet will immediately be escorted off the course and disqualified. Dogs will ONLY be allowed on the course in The Great PUPkin Run, a 1-Mile Costume Dog Walk.
This 1-mile run/walk is for pets and their humans and takes place on Saturday morning. Costumes encouraged, leashes required, wagging tails guaranteed.
We do offer a 15% entry fee discount for all active duty, veterans, guard members and reserve members, however this does not include family members or military spouses. To receive the military discount code, please email us at info@gostlouis.org. Participants utilizing the military discount will be required to provide a military ID or papers during the packet pickup process. This discount is only valid on new registrations and cannot be applied to a previous registration.
Unfortunately we do not offer refunds for any of the events. Costs associated with the pre-planning and ordering of participant amenities well in advance of the race prohibit us from offering refunds. In addition, refunds are not issued if the event is cancelled due to severe weather, disaster or emergency occurrences that may affect the safety and health of the participants. Please take a moment to read the full waiver that is available at the time of registration.
No, transfers are not permitted under any circumstances. While this practice may seem harmless, it can result in serious consequences to both parties involved. It’s an issue of false identity and a liability issue. Why? The most important reason is that your race bib is attached to your identity, so if an emergency occurs that requires medical attention or a race official must identify a participant, we need to have accurate information. In addition, finisher awards may be impacted. If race organizers identify an individual who has given their race bib to another person, it will result in disqualification and a minimum two-year ban for both individuals for any GO! St. Louis race.
Half Marathon Participants Only
Yes. If for a medical reason you are unable to participate in the Half Marathon on October 25, 2025, you have the option of deferring your entry to either the 2027 Great GO! St. Louis Halloween Half Marathon or the Half Marathon during the 2027 Marathon & Family Fitness Weekend with a note from a medical professional. This deferral is valid for 50% of the entry fee. The deferral is neither transferable to another person or another race and is non refundable. The deferral is only valid for one calendar year.
To defer you must email the GO! St. Louis office info@gostlouis.org by October 20, 2026. No deferrals will be processed after this date for any reason.
No, this is not allowed. This is frequently termed “race bandit” by race organizers and will be strictly enforced. Course monitors are trained to spot participants who are not displaying a race bib, and they will be escorted from the race course by officials and banned from future GO! St. Louis events.
Volunteer Opportunities
Get involved!
If you are looking for a fun and rewarding experience, consider joining the more than 3,000 volunteers who help make GO! events and programs a success every year.
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