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Ruth Anderson Memorial Endurance Run

Lakeshore, United States • 11 Oct 2025

The Ruth Anderson Memorial Endurance Run is a prestigious running event held annually in San Francisco, California, since 1986. This endurance race features multiple distances, including 50 miles, 100 kilometers, and 50 kilometers, attracting runners of various skill levels. The course consists of a 4.475-mile paved bike path with dirt shoulders, offering a scenic yet challenging route. Participants can enjoy aid stations and a supportive atmosphere as they strive to complete their chosen distance. The event honors Ruth Anderson, a pioneer in ultrarunning, and continues to foster a sense of community among endurance athletes. Visit the organization's website for the most recent information.

United States California Lakeshore

Race information

Website
50 mi
2488 m+
50m
Visit the organization's website for the most recent information.
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