Race Discovery
Ruth Anderson Memorial Endurance Run
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Ruth Anderson Memorial Endurance Run

San Francisco, California, United States
Oct 10, 2026
Trail running

About this race

The course is a 4.5 mi loop around Lake Merced.

Pick your distance

Trail running

50K

Oct 10, 2026 Ultra 7:00 AM
Free
Open

50mi

Oct 10, 2026 Ultra 7:00 AM
Free
Open

Running

Coastal Testing

Oct 10, 2026 7.2K 7:00 AM
Free
Open

Typical race-day weather

Based on 3 years of historical conditions on this event's race dates in San Francisco.

Temp (°C)
Minimum temperature (race-day average) 13.1° / Maximum temperature (race-day average) 19.6°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-day average) 13.1° / Maximum feels like — heat index / wind chill (race-day average) 19.6°
Wind (km/h)
Average wind speed (race-day average)
17.9
Precip (mm)
Average precipitation (race-day average)
0.2mm
Humidity
Average relative humidity (race-day average)
76.8%

About San Francisco

Ruth Anderson Memorial Endurance Run takes place in San Francisco, California, United States. The local timezone is America/Los_Angeles.

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Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.

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