Saint Louis Half Marathon

The Saint Louis Half Marathon and 5K is a celebrated running event held annually in historic Forest Park, marking its 54th year in 2025. Participants can enjoy new courses for both the half marathon and 5K, starting and finishing at the Muny Festival Grounds. The event features an "Open Start" format, allowing runners to begin within a designated time frame after the official start.

Awards include prize money for top finishers in the half marathon and overall awards for the 5K. A virtual participation option is also available for those unable to attend in person. Visit the organization's website for the most recent information.