Ruth Anderson Memorial Endurance Run
Ruth Anderson Memorial Endurance Run is a running and ultra race on October 10, 2026 in San Francisco, CA.
- Date
- October 10, 2026 (79 days to go)
- Sports
- RunningUltra
From the Organizer
The course is a 4.5 mi loop around Lake Merced.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
66°
Typical Low
54°
Chance of Rain
8%
Based on US Climate Normals data from San Francisco Oceanside, 2 mi from the venue.
Host City
About San Francisco, CA
Population
836,321
as of 2023
City Elevation
43 ft
Nearest Airport
SFO
San Francisco International Airport · 11 mi
Time Zone
Pacific Time
From Endurance Grid
A big city race. Expect multiple lodging options and plenty to do the day before.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Ruth Anderson Memorial Endurance Run, put it on the calendar, and turn “someday” into a start date.
79
Days to train
- Race
- Ruth Anderson Memorial Endurance Run
- Date
- October 10, 2026
Want more races like this?
Enter your email and we'll send more your way.
From Endurance Grid
About These Sports
This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Running
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Ultramarathon
An ultramarathon is anything beyond the standard marathon — 50K, 50-mile, 100K, 100-mile, and timed events. Crossing the line is less about speed and more about not quitting.
Coming Up
More Running races near San Francisco, CA
Run for Breast Cancer 5K/10K/13.1 SAN FRANCISCO
1 Mile · 5K · 10K · Half Marathon · From $30 · Crissy Field (Course Map will be emailed)
6 miles away
National Chocolate Day: Run for Chocolates 5K/10K/13.1 SAN FRANCISCO
1 Mile · 5K · 10K · Half Marathon · From $30 · Crissy Field (Course Map will be emailed)
6 miles away
40th Golden Gate Park XC Open
4 Mile · From $30 · Lindley Meadow, 30th Ave & JFK Dr
4 miles away
Thanksgiving Gobble Trot Run 5K/10K/13.1 SAN FRANCISCO
1 Mile · 5K · 10K · Half Marathon · From $30 · Seal Point Park (Course Map will be emailed)
4 miles away
Plan your trip
Make it a Racecation
Coming from out of town? There's more to San Francisco than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to San FranciscoFrequently Asked Questions (FAQs)
What is the Ruth Anderson Memorial Endurance Run?+
When and where is the Ruth Anderson Memorial Endurance Run?+
How do I register for the Ruth Anderson Memorial Endurance Run?+
Ruth Anderson Memorial Endurance Run
Oct 10, 2026