The Innsbrook Half Marathon & 10k is a scenic race hosted at the Innsbrook Resort, featuring a challenging course that winds through paved and gravel roads during Missouri's peak fall foliage. Participants can choose between a 13.1-mile half marathon or a 6.2-mile 10k, with amenities including a custom finisher medal, long-sleeved apparel, a catered lunch, and post-race entertainment.