Get ready for a spooktacular day of fun and fitness at The Great GO! St. Louis Halloween Race on Saturday, October 24, 2026, in the vibrant city of St. Louis, MO! This exciting event features a variety of race distances to accommodate all levels of participants, including a thrilling half marathon, a challenging 10K, a fun 5K, and even a 1-mile fun run for families. Don’t forget the adorable 1-mile costume dog walk, perfect for including your furry friends in the festivities!

Join fellow runners and families in their Halloween best for a day filled with thrills and chills. The race promises not only a top-notch racing experience but also a festive atmosphere with local business partnerships and delightful post-race amenities. Celebrate your achievements with plenty of candy, refreshing 4 Hands beer for participants over 21, and enjoy the lively festival area in Eureka's business district. With a costume contest to showcase your creativity, The Great GO! St. Louis Halloween Race is the perfect fall event to embrace the spirit of Halloween while staying active!