Road running

Ruth Anderson Memorial Endurance Run

📅 October 9, 2027 (estimated date)📍 San Francisco · United States

⚠️ 2027 edition: provisional information

The date is estimated from the 2026 edition (October 10, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.

Available distances

50 mi31.1 mi

About

The Ruth Anderson Memorial Endurance Run takes place around beautiful Lake Merced in San Francisco, with a 50-mile (80.5 km) race and a 50K both starting at 7 a.m. on October 9, 2027. Designed for athletes who love a challenge, the course is a scenic 4.5-mile (7.2 km) loop, offering plenty of opportunities to test your endurance in an exceptional setting.

Whether chasing a personal record or training, runners find a motivating environment marked by camaraderie and sportsmanship, blending competition and community in a celebration of the true spirit of endurance running.

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Races nearby

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