Mo' Cowbell Marathon

The MO' Cowbell Marathon is a community-focused running event held in historic St. Charles, Missouri, along the scenic Missouri River. Scheduled for October 5, 2025, it offers multiple race distances including a marathon, half-marathon, 10K, and 5K, with virtual options available.

The course is known for being flat and fast, making it ideal for beginners and those seeking personal bests, and it serves as a qualifier for major marathons like Boston and New York City. The route features a mostly flat terrain with a brief hilly section and finishes downhill in Frontier Park. Participants enjoy a family-friendly atmosphere with a post-race party, commemorative shirts, finisher medals, and free photos.

The event promotes health and community spirit, with all proceeds benefiting St. Charles County. Visit the organization's website for the most recent information.