Angeles Crest 100 Mile Endurance Run
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Angeles Crest 100 Mile Endurance Run 2027
The 37th annual Angeles Crest 100 Mile Endurance Run takes place on October 2, 2027, with events starting and finishing at Loma Alta Park in Altadena, California. The event uses the revised loop course introduced in 2026 and travels through Clear Creek, Josephine Peak, Red Box, Newcomb, Shortcut, Chilao, Mt. Hillyer, Chantry Flats, Mt. Wilson, Sam Merrill, and Millard.
Key course facts:
- 100.8 miles approximate distance with about 20,000 feet of elevation gain.
- 61.6 miles (100K) approximate distance with about 13,271 feet of elevation gain.
The 100-mile race has a 33-hour time limit; the 100K has an 18.5-hour time limit. Course details and aid-station locations are subject to permits, trail conditions, fire closures, weather, and other safety considerations.
Entry is by lottery. The lottery opens October 12, 2026 and closes October 26, 2026; entrants and waitlist order are announced October 30, 2026. Approximately 210 positions are available through the lottery; remaining slots are reserved for volunteers, sponsors, and other race commitments. Card payment occurs only for selected entries and non-selected entrants are placed on the waitlist.
Qualification and service requirements include a qualifying race (50 miles or longer within specified dates) and mandatory trail work: eight hours for 100-mile entrants and four hours for 100K entrants, with location requirements based on residence. Refunds follow published deadlines and entries are not transferable. Visit the organization's website for the most recent information.
