Registration for all 2016 Events is closed. NO RACE DAY REGISTRATION.
Welcome to the Mt. Disappointment Endurance Runs where you can experience some of the finest trails and canyons of the San Gabriel Mountains. Our course is incredibly scenic, yet strenuous and challenging. We feature fully stocked aid stations as you become part of the semi-wilderness surroundings. The final climb to the summit of Mt Wilson up the Kenyon Devore Trail will test each runner with terrain and surroundings that are truly unique to these canyons.
June 6, 2016 -
All races for this years event are closed.
January 18, 2015 -
Registration will open February 14, 2016. Register online at Ultrasignup
July 13, 2015 -
Race results will be posted this week.
May 6 , 2006 -
Mt. Disappointment 50k is now a part of Trailrunner Magazine Trophy Series.
December 8, 2005 -
Mt. Disappointment 50k has adopted Kenyon Devore Trail through the Angeles Nat'l Forest Ranger Station as part of our trail work contribution.