Go Girl Run | St. Louis, MO

Go Girl Run | St. Louis, MO is a women-only event held in Eureka, Missouri, in the St. Louis area, on November 21, 2026. The half marathon (13.1 miles) starts at 8:00 a.m. and the 5K follows five minutes later at 8:05 a.m. Every runner receives a custom shirt, a medal and a smoothie glass to mark the finish. The event welcomes women of all ages and is framed around health, wellbeing and a supportive running community rather than around fast times.

That makes it a good target for a first race at either distance. If the 5K is your goal, three or four short runs a week for two months will get you there comfortably. For the half marathon, build a 12-week block around one weekly long run that climbs to about 11 miles and keep every other run easy enough to hold a conversation. Entering with friends works well here, since the two starts are close enough together that the group finishes within the same window.