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Western States 100-Mile Endurance Run

26 June 2027 to 27 June 2027 · Olympic Valley, United States

Enter on the race website
100 miles160.9 km · 100 mi
Trailterrain
5,376 m17,638 ft climbing
22°C72°F, typical on the day

The course covers 100.2 miles from Olympic Valley to Placer High School in Auburn, climbing more than 18,000 feet and descending nearly 23,000. It crosses Emigrant Pass and the Granite Chief Wilderness, descends through the California gold country canyons, and crosses the Middle Fork of the American River before the final stretch into Auburn. Entry is by lottery, with qualifying races and other routes in, so plan the qualifying step well ahead. Finishers under 24 hours earn a silver buckle and those under 30 hours a bronze one.

Route from Western States 100-Mile Endurance Run.

Map © Mapbox © OpenStreetMap.

The Running Algorithm isn't affiliated with this race's organiser. Check the official site for the latest details.

Elevation

0 km20 km40 km60 km80 km100 km120 km140 km161.2 km / 100.2 mi

Typical weather

22°C72°F average
15%chance of rain
11 km/h7 mph wind

Historical averages for this place and date.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.

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