Friday, Jun 8, 2018 @ 6:00 AM

San Diego 100

15027 Highway 79

Lake Cuyamaca, CA 100 Miler

This Event Took Place Fri. Jun 8, 2018


Registration for the 2019 event will open on January 1, 2019. Please check the race web site (linked above) for details on how to qualify and register for the 2019 race.

The San Diego 100 is pleased to launch our new web site. Check it out at:

Latest News: Angela Shartel and BJ Haeck will be the new co-race directors beginning with the planning and preparations for the 2019 event which is tentatively scheduled for June 7-8, 2019. All future correspondence with regard to the event should be directed to:


The 2019 race start and finish area is located at south parking of Lake Cuyamaca Recreation Area which is located 9 miles southwest of Julian, CA on state Hwy 79. See race web site for lodging details. All runners are reminded the 2019 event will start at 6:00am PDT on Friday, June 7, 2019 with the completion cutoff of 32 hours ending at 2:00 pm on Saturday, June 8, 2019.


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.

Qualification to Apply

As a requisite to apply, applicants must have completed a 50 mile ultra race in under 13 hours between the dates of January 1, 2017 to December 31, 2019. 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, 2018 to June 1, 2019. Those who do not complete the volunteer requirement will not be allowed to participate in the race.

SOLO Division

The 2019 event will again have a Solo Division to recognize all runners who opt to run the entire race without the support of a crew or pacers with spectators only allowed to meet Solo runners at the start and finish line. All finishing Solo runners will receive special awards to include a unique belt buckle. Solo runners will have to rely on their drop bags and the aid stations for all support. Solo runners are allowed to run with other registered runners but must rely on themselves (drop bags) and aid station volunteers throughout the entire race.

Local time: 8:14 PM


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