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Ruth Anderson Memorial Endurance Run

Lakeshore, United States • 10 Oct 2026

Ruth Anderson Memorial Endurance Run

The Ruth Anderson Memorial Endurance Run takes place at Lake Merced in San Francisco, California. The event utilizes a circular course around the lake, starting from the parking lot located on the north side of Lake Merced Boulevard. The route consists of a 4.5-mile loop that participants follow to complete their chosen distance.

The event offers several distance options for participants:

  • 50K ultra marathon
  • 50 Miles ultra marathon
  • 4.5 Miles coastal testing run

The course is set within a recreational area and provides a consistent loop format for those undertaking the endurance distances. Participants follow the paved pathway that circles the perimeter of the lake. Visit the organization's website for the most recent information.

United States California Lakeshore

Race information

Website
100 km
100k
50 mi
50m
50 km
50k
Visit the organization's website for the most recent information.
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