Outdoor X12 Endurance Run & Ruck
Always double-check with the organizer's website! This page may contain affiliate links.
Outdoor X12 Endurance Run
The Outdoor Experience 12 Hour Race (OX12) is scheduled for October 2, 2027, at 1385 Harshman Road, Dayton, Ohio. The event is produced in collaboration with Five Rivers Metroparks and the Subaru Outdoor Experience and uses a loop course on park terrain.
The course is a little over 2.7 miles per loop and described as flat. Surface composition is mostly grass and trail double track with approximately 96 percent on grass or trail and about 4 percent on bike path. Participants who remain on the course for the full 12 hours receive finisher medals.
Registration opens October 6, 2026 and closes July 31, 2027. The stated registration fee is $65.00. The event materials note the existence of a course map and course video showing the route and conditions. Visit the organization's website for the most recent information.
