Altadena, California · Trail
Official site ↗Angeles Crest 100
A classic Southern California hundred-miler through the San Gabriel Mountains, finishing in Altadena.
Saturday, October 3, 2026
New course for 2026: Highway 2 closures moved the start and finish to Altadena.
Distances
- Distance
- 100 mi (161 km)
- Cutoff
- 33 hr
New course for 2026 · WSER 2027 qualifier
| Distance | Cutoff | Notes |
|---|---|---|
| 100 mi (161 km) | 33 hr | New course for 2026 · WSER 2027 qualifier |
About
The Angeles Crest 100 has run through the San Gabriel Mountains above Los Angeles since 1986, historically point-to-point from Wrightwood to Altadena. The course mixes high pine ridgelines with hot, exposed canyon miles surprisingly close to the city.
For 2026, long-term closures on Highway 2 forced a full course change: the 36th running starts and finishes in Altadena.
Course
Full course change for 2026: with Highway 2 closed long-term, the race starts and finishes in Altadena on a new San Gabriels route. The race is still finalizing course details.
How to register
Entry is by lottery, alongside a Sterling Silver Ticket series of races that award guaranteed spots. Every entrant must complete eight hours of trail maintenance before race day.