San Francisco 50 Mile/50k Endurance Run

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San Francisco 50 Mile/50k Endurance Run
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Take on the ultimate challenge and complete your first ultramarathon in the Golden Gate National Recreation Area. Great for those seeking to push their limit, the 50k and 50 mile courses behold stunning views of the Marin Headlands. Come along for a backdrop like no other.
50k and 50 Mile
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Sat, May 21, 2022
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Sausalito, United States
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The event experience

Based on location

Where and when
1033 Fort Cronkhite, Sausalito, CA 94965, USA
Start times
Saturday, May 21, 2022
50k: 7:00 AM50 Mile: 7:00 AM
Event summary
Here are the distances available for San Francisco 50 Mile/50k Endurance Run
$80 - $95
50 Mile
$100 - $135
Route information
Both courses will enjoy a striking trail running tour of the Marin Headlands which will offer views of Tiburon, Pirates Cove, San Francisco and the iconic Golden Gate Bridge.
Kicking off from Rodeo Beach, the 50 Mile route is an out and back to Stinson Beach before taking a shortcut to finish back at Rodeo Beach. The 50k route offers a slightly easier route that turns back at the notorious Cardiac Hill
Course Markings
The most important markings along the course will be the polka-dot flagging, which indicated a turn at an intersection. There will be at least two of these flags before a turn in the course, which will be placed before and on the same side as the required turn.
As you start to approach the intersections, please look for any polka-dot flags before turning. Waiting until you're in the intersection to determine the correct direction may be confusing and you may go the wrong way.
After you complete the turn, there will be orange and/or pink flagging indicating the correct route. We also hang blue ribbons at critical junctions indicating the wrong way. Blue is bad!
If you go 3-4 minutes without seeing your respective flagging, it's likely you've gone off course and should retrace your path until you find the course again.
Please be courteous on the trail. If you're passing another runner or hiker, announce "on your left" as you approach.
**Course Surfaces **
50k - (Elevation 5,990', 48% Single Track, 47% Dirt Road, 5% Asphalt)
50 Mile - (Elevation 9,890', 57% Single Track, 39% Dirt Road, 4% Asphalt)
Organizer route images
What's included
  • Finisher's Medal
  • Event T-Shirt
  • Custom Coaster for 50k finishers
  • Custom Buckle for 50 Mile finishers
  • Stocked Aid Stations
  • Prizes for top M/F runners
How to get there
1033 Fort Cronkhite, Sausalito, CA 94965, USA
Get full directionsExternalLink
By Car
The event can be reached by taking exit 442 of the US-101 onto Alexander Ave, then turning left onto Bunker Rd and following it until you reach the event.
There will be parking available at the event.
Event day logistics
6am to 6:45am Race Packet Pickup at Rodeo Beach
7am 50k & 50 Mile start
5pm 50k cut off time
11pm 50 mile cut off time
Please arrive at least 45 minutes before the race start to ensure there is ample time to collect your number and shirt.
Time Limit
There will be time limits in place for these events which are as follows:
50k - 10 hours 50 mile - 16 hours
Aid Stations
There will be fully-stocked aid stations every 4 - 5 miles. You can expect fresh fruit, salty snacks, assorted candy, boiled potatoes & salt, water, and Clif Shot Electrolyte sports drink. In addition, the start/finish and Tennessee Valley aid stations will have soup and other ‘real’ food during the night and second morning. If you would like to be sure that you have Clif product, SaltStick capsules, or any other specific item at the event, you should carry it with you. Additionally, it is highly recommended that runners carry at least 20 oz. of water between aid stations.
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Results & Photos

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London, WC2H 9EA

Reg number 10083277

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