The Great GO! Halloween Race - GO! St. Louis

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The Great GO! Halloween Race

Eureka, Missouri
Race day count down
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!

  • Scenic running routes
  • 1mi + 5K + 10K + Half Marathon
  • Costume contest for each distance
  • Halloween themed swag
  • Post-race festival in Eureka
  • Pumpkin pies & cash prizes

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 and 1-mile fun run distances allow runners of all levels to get into the spooky spirit. GO! St. Louis partners with local businesses to cultivate a unique experience that includes post-race candy treats, Urban Chestnut beer for the over 21-participants, and a chance to relax and socialize at the festival held in Eureka’s business district.

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!

Participants receive:

  • Premium long sleeve tech shirt
  • Festive Finisher Medal
  • Digital Finisher Certificate
  • Post-race Treat Bag

Course maps:

Great Halloween Race – 5K + 10K map

Great Halloween Race – Half marathon map

Register Today!

Date +Time
Sunday, October 20, 2024
5K + 10K + Half Marathon Start time: 7:00am
1-Mile Fun Run Start time: 9:00am

Entry fee:
$20 – 1-Mile Fun Run / $35 – 5K / $50 – 10K / $65 – Half Marathon

Post-race beverages sponsored by:

Friday, October 18, 2024

  • Time: TBD
  • Location: TBD

Saturday, October 19, 2024

  • Time: TBD
  • Location: TBD

Sunday, October 20, 2024

  • Time: 5:30am – 9:00am
  • Location: Race Site, Eureka, MO
Register Today!

Date +Time
Sunday, October 20, 2024
5K + 10K + Half Marathon Start time: 7:00am
1-Mile Fun Run Start time: 9:00am

Entry fee:
$20 – 1-Mile Fun Run / $35 – 5K / $50 – 10K / $65 – Half Marathon

Post-race beverages sponsored by:

Race Day

Race Day Parking

  • All participants and spectators will be asked to use the parking lots at Six Flags Mid-America.
  • Please use I-44 exits at Six Flags to access the lots and follow directional signage and the directions of officers on duty to assist.
  • Six Flags has ample parking for this event and can hold a higher volume of traffic at highway exit ramps, providing a more efficient solution to race parking than in past years.
  • There will be no event parking in the downtown Eureka area.

Free Shuttle Service

  • Shuttles begin: 5:15am / Shuttles end: 11:00am
  • Shuttle service is required to and from the race site in downtown Eureka.
  • Shuttles run continuously throughout the morning serving spectators and participants.

Parking at Six Flags Mid-America
4900 Six Flags Road, Eureka, MO 63025

Shuttle Pick Up
Southeast corner of Six Flags parking lots (will be marked with signage)

Shuttle Drop Off at Race Site
1st Street at N. Central – a short walk from the start and finish line areas

Costume Contest
After the race, stick around for the costume contest! Our costume contest will be held live at a designated time for each distance.

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 – top 3 male & female finishers – 10K & Half Marathon

  • 1st Place: $300
  • 2nd Place: $200
  • 3rd Place: $100

Race Photos



Do you have any course time limit rules?

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
Do you allow participants to walk in the races?

Absolutely, we love walkers, but we ask that you agree to the time limit rules above.

Can I run or walk with a baby jogger or stroller?

Yes – for our 5K or 10K race we do allow baby joggers or strollers. Participants are asked to start at the back of the start line area.

I love to run with my dog, may I bring him or her to run with me?

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.

Do you offer a military entry fee discount?

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 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.

Can I get a refund if I cannot participate?

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.

Can I transfer my registration to another person if I cannot participate?

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.

Can I defer my entry to another date?

Half Marathon Participants Only

Yes. If for a medical reason you are unable to participate in the Half Marathon on October 22, 2023, you have the option of deferring your entry to either the 2024 Great GO! St. Louis Halloween Half Marathon or the Half Marathon during the 2023 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 by October 17, 2024. No deferrals will be processed after this date for any reason.

Can I participate if I do not have my race bib on race morning or decide to join the race without officially completing the registration process?

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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