Western States 100
Western States 100 is a landmark point-to-point California trail ultra from Olympic Valley to Auburn, with huge climbs, lottery entry, and race-week tracking.
Quick facts
- Oldest 100-mile trail race and one of the sport's hardest entries.
- Point-to-point California trail route from Olympic Valley to Auburn.
- Lottery and qualifier-based entry make the field small and difficult to access.
- More than 18,000 feet of climbing and nearly 23,000 feet of descending.
- Race-week tracking is linked from WSER through UltraLive.
About the Western States 100
The Western States 100 is the oldest 100-mile trail race and one of ultrarunning's hardest entries. The point-to-point run starts in Olympic Valley and finishes at Placer High School in Auburn, with strong runner demand for race-week tracking and results.
Course
The course follows the Western States Trail for 100.2 miles from the Sierra high country to Auburn. Runners climb from Olympic Valley to Emigrant Pass early, then deal with long descents, hot canyons, remote aid stations, the Rucky Chucky river crossing, and the Placer High track finish inside a 30-hour limit.
Race-day weather
Late June can give runners cool mountain air near the start, then heat and sun exposure in the canyons before the overnight push toward Auburn. Snowpack, river conditions, and canyon temperatures can all change how hard the same course feels from year to year.
Past Western States 100 dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2027 | Saturday, June 26, 2027 | Upcoming | — |
| 2026 | Saturday, June 27, 2026 | Completed | Open results |
| 2025 | Saturday, June 28, 2025 | Completed | Open results |
| 2024 | Saturday, June 29, 2024 | Completed | Open results |
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Western States 100 FAQ
When is the Western States 100?
The 2027 Western States 100 is on Saturday, June 26, 2027.
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