All opinions are our own and never influenced by brands. If you buy through links, we may earn a commission.

TNF Endurance Challenge California (‘TNF50’)

One of the biggest trail running events (by participant numbers) in the US, The North Face Endurance Challenge’s ‘San Francisco’ edition is held in and around the beautiful Marin Headlands, which are part of the Golden Gate National Recreation Area. Starting in the pictureque coastal town of Sausalito, the races take you along world-class buffed California trails, before bringing you to the finish line via a run across the Golden Gate Bridge.

Race options include the Championship 50 mile and 50km distances, as well as a ‘fast’ trail marathon and half marathon.

In addition to the races summarized below, there are also marathon relay, 10km, 5km and kids races, starting and finishing from Crissy Field, in San Francisco. These races do not go over the Golden Gate Bridge or visit the Marin Headlands, although the relay and 10km do showcase San Francisco’s Presidio (a city park), which provides views of both.

When does it take place?

  • November – please check the race website for this year’s exact dates.

Where does the race start?

  • Sausalito (Near San Francisco), California.

TNF Endurance Challenge California 50 Mile Race Profile

  • Distance = 50 miles
  • Elevation Gain = 3,250m / 10,266ft
  • Cutoff time  = 14Hr

TNF Endurance Challenge California 50km Race Profile

  • Distance = 50km
  • Elevation Gain = 2,053m / 6,736ft
  • Cutoff time  = 10Hr

TNF Endurance Challenge California Marathon Race Profile

  • Distance = 42 km
  • Elevation Gain = 1,527m / 5,010ft
  • Cutoff time  = 8Hr

TNF Endurance Challenge California Half Marathon Race Profile

  • Distance = 21 km
  • Elevation Gain = 744m / 2,441ft
  • Cutoff time  = 4Hr

Event Media

The gallery below displays some of the scenery you can expect from running in the Marin Headlands.

TNF Endurance Challenge California Reviews

  • We’ll write a review when we’ve run the race! We were due to race in 2018 but it was canceled due to bad air conditions resulting from nearby wildfires.

Compulsory Gear for TNF Endurance Challenge

  • Compulsory gear includes a headlamp for the 50 mile distance. Visit the race organizer’s website for race-by-race gear requirements, in the downloadable course guides.

Race website

Helen
Helenhttps://www.trailandkale.com/
One of Trail & Kale's co-founders, a mom, and guardian of our resident trail dog, Kepler, Helen can be found trail running with Kepler and enjoying road runs with her mini in a jogging stroller, all while testing out the latest running gear for our readers.

2 COMMENTS

LEAVE A REPLY

Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Trail & Kale Running Co logo Email Newsletter

Don't Drop Behind
Subscribe to stay up to date!

Latest Reviews
Fresh drops for you to read

Rocky Talkie 5 Watt Radio Review

This two-way radio redefines rugged, reliable communication with extended battery life, making it our top choice for outdoor adventurers.

Asics Gel Nimbus 26 Review: Plush Daily...

Our Asics Gel Nimbus 26 review evaluates how the latest iteration of Asics' famously plush, and very popular road running shoes stack up.

Saucony Endorphin Speed 4 Review: All This...

Alastair shares how this versatile, stylish running shoe excels in both races and training without breaking the bank.

Training Plans
5K, 10K, Half Marathon, Marathon, Ultramarathons

Trending
What's hot right now

Best HOKA Running Shoes of 2024 Ranked...

ULTIMATE HOKA Running shoes buyer's guide, complete with reviews + rankings of the best HOKA running shoes. YES, I've reviewed them all!

Best Brooks Running Shoes of 2024 Ranked...

Welcome to the ULTIMATE Brooks Running shoes buyer's guide, complete with reviews + rankings of the best Brooks shoes | YES, I've reviewed them all!

Nike Alphafly 3 Review: Holy Lightning, I...

Alastair shares his expert take on the Nike Alphafly 3, focusing on their innovative features, PLUS his performance review of these super shoes.