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 into Frontier Park. The event emphasizes family-friendly fun, health promotion, and community involvement, complemented by a festive post-race party, commemorative shirts, finisher medals, and free photos. Visit the organization's website for the most recent information.