Since 2012, the Cuyamaca 100k Endurance Run has been providing runners with a scenic 100 kilometer running challenge. The course traverses a diverse landscape of oak woodlands, meadows, pine forests, and chaparral in the Cuyamaca Rancho and Anza Borrego Desert State Parks.
The 2025 event is scheduled for Saturday, 10/4.
Cuyamaca Outdoor School
Since 2012, the Cuyamaca 100k has benefited from the support of the Cuyamaca Outdoor School. The venue and facilities that host our race are home to a 6th grade camp program that has inspired the love of the outdoors in thousands of students over the course of the 70+ years. Please join us in supporting the outdoor education of San Diego's youth at sixthgradecamp.org.\
Cuyamaca 100k is a proud supporter of Runners for Public Lands, a nonprofit focused on climate action, sustainability practices, the protection of public lands, and equitable access to nature.
