The Innsbrook Half Marathon

The Innsbrook Half Marathon & 10k is a scenic running event held at Innsbrook Resort in Missouri, about an hour from St. Louis. Scheduled for October 25, 2025, it offers two race distances: a 13.1-mile half marathon and a 6.2-mile 10k.

The course features a mix of pavement and smooth gravel roads through beautiful countryside, showcasing peak fall colors. The event is capped at 500 runners to ensure a comfortable race experience with small start waves. Participants receive a custom finisher medal, a premium long-sleeved shirt, a catered to-go lunch, and can enjoy live music and cold beer at the finish. Visit the organization's website for the most recent information.