The Western States 100-Mile Endurance Run stands as the world's oldest and arguably most prestigious 100-mile trail race, offering an unparalleled journey through California's rugged Sierra Nevada mountains. On June 27, 2026, runners will embark on this iconic 100.2-mile odyssey, starting at 5:00 a.m. from Olympic Valley, CA, and concluding at the Placer High School track in Auburn, CA. The course, steeped in history and traversing lands traditionally used by Indigenous Peoples, gold miners, and horsemen, is a true test of endurance, featuring over 18,000 feet of ascent and nearly 23,000 feet of descent.

The race begins with a demanding 2,550-foot climb in the first 4.5 miles to Emigrant Pass, leading runners into the majestic high country of the Granite Chief Wilderness, characterized by technical singletrack, dense forests, and rocky paths. As the course progresses, it plunges into the infamous sun-baked canyons of the California gold country, where temperatures can soar and the dry, exposed trails present a significant challenge for heat management. Typical race day conditions can see highs around 76°F and lows around 44°F, though canyon temperatures often exceed these averages. A memorable highlight is the Rucky Chucky river crossing at mile 78, where runners navigate the ice-cold waters of the Middle Fork of the American River.

What truly sets Western States apart is its rich history, the incredible spirit of its over 1,500 dedicated volunteers, and the unparalleled support found at its 20 aid stations, which are meticulously stocked with fluids, a variety of foods, and essential medical checkpoints. Pacers are allowed from the Foresthill aid station (mile 62) to help runners push through the final challenging sections. Finishing within 24 hours earns a coveted silver belt buckle, while a sub-30-hour finish is recognized with a bronze buckle, making Western States a "crown jewel" of ultrarunning that connects participants to the sport's storied past.