ST. LOUIS’ MOST FESTIVE RACE!
Get into the spooky spirit at The Great GO! St. Louis Halloween Race in Eureka, MO! With a half marathon, 10K, 5K, 1-mile fun run, and the Great PUPkin Run for four-legged friends, there’s something for everyone. Enjoy costumes, candy, 4Hands beer (21+), and post-race fun in Trick-or-Treat Village at Kircher Park. Don’t forget your costume for a chance to win in our popular costume contests!
Race Day Links
Races + Registration
Take on 13.1 miles of fall fun at the Great GO! St. Louis Halloween Half Marathon! Enjoy a festive course filled with Halloween spirit and plenty of costumes. Whether you’re racing for a PR or just soaking up the season, it’s the perfect way to celebrate Halloween with the St. Louis running community.
Participants receive:
- Premium long sleeve shirt
- Festive Finisher Medal
- Digital Finisher Certificate
- Post-race candy
The Course
Check out our course preview HERE.
Date +Time
Sunday, October 25, 2026
Location: Kircher Park
Half Marathon Start time: 7:00am
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!
Participants receive:
- Premium long sleeve shirt
- Festive Finisher Medal
- Digital Finisher Certificate
- Post-race candy
The Course
Date +Time
Saturday, October 24, 2026
Location: Kircher Park
10K Start time: 7:00am
5K Start time: 8:30am
1-Mile Fun Run Start time: 9:15am
The Great Pupkin Run Start time: 9:45am
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!
Participants receive:
- Premium long sleeve shirt
- Festive Finisher Medal
- Digital Finisher Certificate
- Post-race candy
Date +Time
Saturday, October 24, 2026
Location: Kircher Park
10K Start time: 7:00am
5K Start time: 8:30am
1-Mile Fun Run Start time: 9:15am
The Great Pupkin Run Start time: 9:45am
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!
Participants receive:
- Premium long sleeve shirt
- Festive Finisher Medal
- Digital Finisher Certificate
- Post-race candy
Date +Time
Saturday, October 24, 2026
Location: Kircher Park
10K Start time: 7:00am
5K Start time: 8:30am
1-Mile Fun Run Start time: 9:15am
The Great Pupkin Run Start time: 9:45am
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!
Participants receive:
- Premium long sleeve shirt
- Festive Finisher Medal for pup!
- Digital Finisher Certificate
- Post-race candy
Date +Time
Saturday, October 24, 2026
Location: Kircher Park
10K Start time: 7:00am
5K Start time: 8:30am
1-Mile Fun Run Start time: 9:15am
The Great Pupkin Run Start time: 9:45am
Race Weekend
Thursday, October 22, 2026
Time: 3:00pm-7:00pm
Location: GO! St. Louis Office – 5029 Northrup Ave, St. Louis, MO 63110
Friday, October 23, 2026
Time: 12:00pm-6:00pm
Location: GO! St. Louis Office – 5029 Northrup Ave, St. Louis, MO 63110
Saturday, October 24, 2026
Time: 6:00am – 9:45am and 11:00am – 3:00pm
Location: Kircher Park – Eureka, MO
Sunday, October 25, 2026
Time: 5:45am – 7:00am
Location: Kircher Park – Eureka, MO
ALL race parking will be at Eureka High School. There will be NO parking for runners or spectators at the race site.
Complimentary shuttles will transport all runners and spectators between Eureka High School and the race site. Please plan to park at the high school and allow extra time on race morning for parking and shuttle transportation.
Directions to Eureka High School:
- From I-44 Westbound: Take Exit 264 (Eureka), turn right onto Highway 109, then left into the Eureka High School parking lot.
- From I-44 Eastbound: Take Exit 264 (Eureka), turn left onto Highway 109, then left into the Eureka High School parking lot.
IMPORTANT: Do not drive directly to the race site. All runners and spectators must park at Eureka High School and take the complimentary shuttle to the race.
Shuttles will begin running at 5:25am and run continuously throughout the morning, with the exception of 7:00am – 7:30am for the race to come through. The last shuttle from the race site back to Eureka High School will be at 10:30am.
Street Closures
Sunday, October 25, 2026
- Williams Rd from S. Outer to Eureka Rd: 6:45am – 7:15am
- Augustine Road from Williams Dr. to Cerny: 6:45am – 7:15am
- Cerny Ave from Augustine to Forest Hills Dr: 6:45am – 7:30am
- The Timbers lots: 6:45am – 7:30am
- 109 Crossing at the Legends: 7:00am – 7:40am (metering when possible – likely not possible between 7:10am – 7:30am)
- Central Ave from the Spur to Frisco: 6:45am – 7:45am (southbound lanes closed only – northbound to remain open)
- Frisco from Central to Bald Hill: 6:45am – 7:45am
- Bald Hill from Frisco to Legion Park entrance: 6:45am – 7:45am
- Bald Hill crossing at Legion Park/ball fields: 7:15am – 8:20am (metering traffic through when possible)
Interested in a race day vendor space in our finish line area or inserting a flyer into our race bags? Please email sranson@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 Amp Up Action Park, Float STL, Missouri Botanical Garden, Skyzone, Swing Around Fun Town, Raising Canes and more!
Our costume contest will be held live at a designated time for each distance.
Saturday, October 24
- 10K: 8:45am
- 5K: 9:30am
- Fun Run: 9:30am
- PUPkin Run: 10:15am
Sunday, October 25
- 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, 2026, 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.
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