The Barkley Marathons

The Barkley Marathons is an extremely challenging ultramarathon held annually in Tennessee, covering approximately 100 miles through rugged terrain. Participants must complete five looping courses within 60 hours, navigating dense woods, steep hills, and river crossings. The race is known for its minimal aid, complex navigation, and unconventional entry process, making it perilous and unpredictable. Less than 20% of entrants finish, and it tests endurance, mental toughness, and resilience. Founded by Gary “Lazarus Lake” Cantrell, the race has become legendary in the ultrarunning community for its difficulty and mystique.