The Great GO! St. Louis Halloween Race takes place in the vibrant city of St. Louis, MO, offering a spooktacular weekend with a half marathon, 10K, 5K, and a 1-mile fun run. Participants can enjoy the beautiful scenery of Eureka while engaging in a top-quality race that highlights local partnerships and community spirit. The event includes post-race treats such as candy and Schlafly beer for those over 21, and a popular Costume Contest. This race promises a memorable weekend filled with fun, fitness, and festive cheer.
Race Date:
19 October, 2025
The Great GO! St. Louis Halloween Half Marathon is a 13.1-mile race that combines a challenging distance with a festive Halloween atmosphere, often taking runners through scenic areas of Eureka, MO. This certified course attracts serious runners and those looking for a fun, themed challenge, with a time limit of 3 hours and 15 minutes.
Weather based on historical averages.
The Great GO! St. Louis Halloween Half Marathon is a 13.1-mile race that combines a challenging distance with a festive Halloween atmosphere, often taking runners through scenic areas of Eureka, MO. This certified course attracts serious runners and those looking for a fun, themed challenge, with a time limit of 3 hours and 15 minutes.
The The Great GO! St. Louis Halloween Half Marathon is 21km long.
The The Great GO! St. Louis Halloween Half Marathon takes place in Eureka, St. Louis, Missouri, USA.
Runna classifies the The Great GO! St. Louis Halloween Half Marathon elevation profile as Hilly.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Great GO! St. Louis Halloween Half Marathon is a 13.1-mile race that combines a challenging distance with a festive Halloween atmosphere, often taking runners through scenic areas of Eureka, MO. This certified course attracts serious runners and those looking for a fun, themed challenge, with a time limit of 3 hours and 15 minutes.
The The Great GO! St. Louis Halloween Half Marathon is 21km long.
The The Great GO! St. Louis Halloween Half Marathon takes place in Eureka, St. Louis, Missouri, USA.
Runna classifies the The Great GO! St. Louis Halloween Half Marathon elevation profile as Hilly.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Running
Nature
Dog Friendly
Virtual
Kid friendly
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by The Great GO! St. Louis Halloween Race or GO! Saint Louis. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the The Great GO! St. Louis Halloween Race website.