Angeles Crest 100 mile endurance run

The Angeles Crest 100 Mile Endurance Run, first held in 1986, is one of the original 100-mile endurance events in the United States. This challenging race winds through the rugged San Gabriel Mountains, offering spectacular scenery alongside demanding terrain. The 36th annual event in 2026 will feature a modified 100.8-mile loop course starting and finishing at Loma Alta Park in Altadena, California. Runners can expect steep climbs, rocky trails, and remote backcountry. The course navigates through areas like Clear Creek, Josephine Peak, Red Box, and Mt. Wilson before returning to the finish. The AC100 is known for its demanding nature, requiring significant physical and mental preparation. The race emphasizes the journey and the experience of traversing the San Gabriel Mountains on foot, with training runs and trail workdays being an integral part of the event's community. Finishing the AC100 is a significant accomplishment, with various awards recognizing achievement. Finishers receive a plaque and t-shirt. Those completing the race under 24 hours earn a Solid Sterling Silver buckle, while others receive bronze buckles based on their finishing time. Special awards are also given for breaking course records and for multiple finishes.