Nagi Peaks Tough Trail Challenge

The Nagi Peaks Tough Trail Challenge takes runners to the ridgelines of the Nagi mountain range in Japan’s Mimasaka area. This trail running race is described by its organizers as “tough and wild.” The event announces each edition individually, rather than on a fixed monthly or seasonal schedule. The course follows mountain ridges, offering broad views from high ground as a primary attraction. The race aims to promote Mimasaka’s natural environment and tourism, connect people through the event, and support local initiatives. Recent announcements have included details on guest runners, sponsors, participant gifts, and a message from the mayor of Tsuyama City.