Each athlete took home $10,000 for the win.
Senior editor Mario Fraioli recounts working through a few rough patches in a recent race.
The California race had a loaded field that overcame wet and muddy conditions.
Here are the top-25 women's finishers at Saturday's race.
Here are 5 men and 5 women to keep an eye on at the North Face Endurance Challenge Championship on Saturday.
Check out these great shots from a muddy day in Marin!
Ultra enthusiasts are saying this may be one of the best fields ever assembled for a 50-mile trail race
Caitlin Smith and Uli Steidl Crowned The North Face Endurance Challenge Champions Written by: Bryon Powell For the third consecutive year,