The Harpeth Hills Flying Monkey Half Marathon 2026

The Harpeth Hills Flying Monkey is a deliberately tough 26.2-mile race in Nashville’s Percy Warner Park, designed as the opposite of a flat, fast city marathon. The course is not certified and not a Boston qualifier; the objective is not chasing an official fast time. Runners encounter wooded park roads, steep rolling hills, and over 3,600 feet of climbing with equal descending. The race maintains a minimal production: no bands, cheerleaders, wave starts, or large crowds. Entry is limited via lottery, with some charity spots available, and proceeds benefit Friends of Warner Parks. Its running joke is that it guarantees no personal records, but every finisher receives a “PR” as a Permanent Remembrance for completing a demanding day in the Harpeth Hills.