The grandfather of 100-mile trail races, Western States takes runners from Olympic Valley to Auburn through the stunning Sierra Nevada mountains. Known for extreme heat, massive elevation changes, and a storied history dating back to 1974.
90% single-track trail, highly technical with rocky sections, river crossings, and exposed ridgelines
Lottery system with ultra qualification requirement
18,090 feet
22,970 feet
8,750ft
300ft
Elevation Range: 8,450 feet
Pre-dawn start through Sierra high country. Runners must pace conservatively despite feeling fresh.
The crux of the race. Massive descent into canyons followed by a brutal 2,500ft climb in heat.
Recovery section with runnable terrain. Last chance to bank time before nightfall.
Night running with the infamous Cal Street climbs. Iconic river crossing at Rucky Chucky.
Final push through Auburn Lake Trails. Mostly runnable terrain perfect for emptying the tank.
Western States rewards extreme patience early and aggressive running late. The first 30 miles should feel too easy. Banking energy before the canyons (miles 30-55) is critical. Night sections are runnable and where smart pacers make up time.
Upload the Western States 100-Mile Endurance Run GPX file and receive a segment-by-segment pacing strategy tailored to your goal time, optimized for every climb and descent.
Olympic Valley, California
39.1969, -120.2358
Get a personalized, segment-by-segment pacing plan for Western States 100-Mile Endurance Run based on your goal time.
Create My Plan