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San Diego 100 Mile Endurance Run

Run 160.934km
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The Premier 100 Mile Running Event in San Diego. Scenic & Challenging 100 Miles in Mt Laguna Recreational Area and along the Pacific Crest, Noble Canyon, and Lake Cuyamaca Trails.

How to enter the San Diego 100 Mile Endurance Run

  1. San Diego 100 Mile Endurance Run

    Run 160.934km
    Event passed

San Diego 100 Mile Endurance Run route

The San Diego 100 course is a 90% single track mountain course which covers four recreational areas in the east county mountains of San Diego. The 2018 start and finish area are located at the south parking area of Lake Cuyamaca Recreational Area. The course includes trails traversing sections of the Pacific Crest Trail (PCT), Noble Canyon, the Cuyamaca and the Anza Borrego State Parks, and Mt Laguna Recreational Areas. A very challenging course with approximately 26,000' feet of total elevation change (13k climb & 13k descent) with a 32 hour time limit. Selected runners must agree to the strictly enforced limit of one crew vehicle which includes any pacers that are helping the runner.

Event Details


How do I qualify to enter?

As a requisite to apply, applicants must have completed a 50 mile ultra race in under 13 hours between the dates of January 1, 2018 to January 31, 2020. Applicants who have completed a 100K or a 100 mile within the time limits of that race within the last two years are also qualified to enter. Applicants are also required to perform 6 hours of trail maintenance as a volunteer or 6 hours of volunteer service at another ultra or other community service from between June 1, 2019 to May 31, 2020. Those who do not complete the volunteer requirement will not be allowed to participate in the race.

San Diego 100 Mile Endurance Run weather forecast

Mostly cloudy throughout the day.

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