Green Beret Fitness (GBF) is a fitness events company that designs rucking and hybrid-endurance challenges based on military training, tactics, and techniques.
INYO is a timed, weighted ruck challenge in the Eastern Sierra near June Lake, CA, starting Saturday, August 21, 2027, at 6:00 AM (Silver Lake, Mono County, CA 93529). Three distances: 6 miles (1,919 ft gain, $85), 14 miles (3,711 ft gain, $105), or 26 miles (5,978 ft gain, $135), each with Runner, Light, and Heavy categories, plus tax. As of this listing, registration is closed while GBF finalizes permitting and route confirmation for its 2027 schedule — GBF says full event briefs will follow later in 2026.
Registration and full event logistics are handled directly by Green Beret Fitness on their own event page.
Green Beret Fitness (GBF) is a fitness events company that designs rucking and hybrid-endurance challenges based on military training, tactics, and techniques. Events range from single-day timed ruck challenges to multi-day, Special-Forces-selection-style expeditions, held at locations across the U.S. GBF operates registration and event logistics directly through its own site, greenberetfitness.com.
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