Angeles Crest 100 Endurance Run


The San Gabriel back country retains much of the natural beauty, if not the primitive wilderness of yesteryear. Thanks largely to the foresight and capable supervision of the U.S. Forest Service and hundreds of volunteers. Picnic areas and campgrounds have been constructed with minimum displacement of the natural setting.

Those desiring to see this primitive wilderness in a single day are invited to participate in the Angeles Crest 100 Mile Endurance Run.


AC100's permit request for the 2016 race was approved on the condition that the race no longer use trails in the Pleasant View Ridge Wilderness. Please see Dominic Grossman's petition to the White House to allow for continued access in the PVRW, just as Western States 100 was allowed to continue to use trails in the Granite Chief Wilderness: . We have until July 28th to gather 100,000 signatures that will guarantee a response from the White House. learn more


2017 AC100 On-Line Registration 2017 on-line registration will begin on Monday 12:00 Noon on August 8, 2016, following the conclusion of the 2016 race. 1) The 2017 AC100 On-Line Registration (at this website) will be a lottery. The lottery will be open for 24 hours. 2) The... read it all


VOLUNTEERS If you are involved in mountain trail endurance running, you know it takes a small army of volunteers to put on a "point to point" 100 mile endurance run.  We need:   1) help at several late wilderness aid stations:  -Idlehour Checkpo... read it all


2016 AC100 Training Runs -Trail Work Schedule (Check for any changes) RD’s Hal Winton & Gary Hilliard will be in charge of trail work days as available.  Posted on 3-28-2016. April 2, 7:00AM (Saturday): Trail Work: (NOTICE: This trail work day... read it all

UltraRunning Magazine
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2011 AC100: Runners on Mt Baden Powell at 9300 ft elevation

Comparing 100 Milers
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1988: The Original First Five 100 Milers Compared in UltraRunning Magazine