2024 Better Being Antelope Island Marathon 2026

The Better Being Antelope Island Marathon is part of the Buffalo Run on Antelope Island, a spring trail-running event where wild bison may be near the route. Runners choose from 25K, 50K, and 50-mile distances, all on rolling singletrack through desert grasslands with open views toward the Great Salt Lake. The event began in 2006 with 150 runners in the 25K and 50K, then later added the 50-mile race. The 25K race is about 16.48 miles with roughly 1,687 feet of climbing, while the 50K has about 3,038 feet of gain and the 50-mile race has about 3,428 feet. All three distances use an 11:59 p.m. cut-off, allowing the day for faster runners chasing records and people trying to finish a long trail race. The Pentalon Challenge adds prize money for new course records: $500 in the 50-mile and 50K races, and $250 in the 25K.