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Ruth Anderson Memorial Endurance Run

Name: Ruth Anderson Memorial Endurance Run
Start: 2025-10-11
End: 2025-10-11
Location: Lakeshore

Lakeshore, United States • 11 Oct 2025

The Ruth Anderson Memorial Endurance Run is a prestigious running event held annually in San Francisco, California, with the next edition scheduled for October 11, 2025. This endurance run features multiple race distances, including 50 miles and 100 kilometers, and takes place on a scenic 4.5-mile loop around Lake Merced. The event has a rich history, having been established in 1986, and is known for its supportive atmosphere and challenging course. Participants can expect well-organized aid stations and a chance to set personal or course records in a beautiful setting. Visit the organization's website for the most recent information.

United States California Lakeshore

Race information

Website Registration

4 mi

4.5 Mi Loop

Visit the organization's website for the most recent information.

Trail runs nearby

Saturday Jan 25

HOKA Black Canyon Ultras Training Day

Mill Valley - 12 mi from Lakeshore

0 km

The HOKA Black Canyon Ultras Training Day will take place in Mill Valley on Saturday 25 January 2025.

Saturday Jan 25

China Camp Challenge

San Rafael - 16 mi from Lakeshore

5 km

10 km

13 mi

The China Camp Challenge is a running event held at China Camp State Park in San Rafael, California. Participants can choose from three distances: a 5K, 10K, or half marathon, all set against the backdrop of scenic trails and views of the Bay Area. The park offers a natural environment with a canopy..

Saturday Feb 1

Golden Gate Trail Run

Sausalito - 8 mi from Lakeshore

...

The Golden Gate Trail Run is an exciting running event taking place in Sausalito, California, featuring a variety of race distances including an 8K, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and under. Participants can enjoy stunning views of the Pacific ..

Saturday Feb 1

Go Wild Lime Ridge 2 Hour

Walnut Creek - 26 mi from Lakeshore

Backyard Ultra

2 hr

The Go Wild! Lime Ridge 2 Hour event invites participants to explore the scenic Lime Ridge Open Space in Walnut Creek, CA. Teams of 1 to 5 will navigate through beautiful trails, majestic oaks, and grasslands using a custom map to locate up to 20 checkpoints within a 2-hour timeframe. This event emp..

Saturday Feb 15

Redtail Ridge

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Saturday Feb 15

Bay Breeze - San Leandro

San Leandro - 18 mi from Lakeshore

5 km

10 km

13 mi

The Bay Breeze event, taking place at San Leandro Marina Park, features a scenic half marathon, 10K, and 5K run along the picturesque San Francisco Bay. This race is designed for all levels of runners and walkers, offering a mostly flat course that is ideal for setting personal records. Participants..