Angeles Crest 100 Mile Endurance Run

The Angeles Crest 100-Mile Endurance Run, or AC100, is an ultramarathon 100 miles (162 kilometers) long that takes place annually along trails through California's Angeles National Forest. The course was originally designed to be a challenging 30-hour course, but due to its difficulty, the official cut-off time is set to 33 hours. The race is limited to 150 participants; registrants must qualify by completing at least a 50-mile run in the previous year.

Angeles Crest 100 Mile Endurance Run

The Angeles Crest 100-Mile Endurance Run, or AC100, is an ultramarathon 100 miles (162 kilometers) long that takes place annually along trails through California's Angeles National Forest. The course was originally designed to be a challenging 30-hour course, but due to its difficulty, the official cut-off time is set to 33 hours. The race is limited to 150 participants; registrants must qualify by completing at least a 50-mile run in the previous year.