The date of our 2016 event has not yet been confirmed.  It will certainly be the first or second weekend of October.

Registration will open 4/1/16.

This page will be updated as soon as the date is established.

Cindy Lynch (right) cruising the meadows of the 3rd loop. (photo by Christy Baker)
Kris Brown (below) climbing strong early on. (photo by Keshav Dahiya)

San Diego Ultra Slam
Since the creation of the Cuyamaca100k last year the RD's of San Diego's mountain ultra races have put together a special award for those runners who complete four races of each iconic ultra distance; 50k, 50 miles, 100k, and 100 miles. Please visit for more information.