On December 5, 2015, I participated TNFECS 50 Miler with few our running friends. TNFECS was tough. I finished my LAST TIME 50 miler in 13:20. My shoes were given me a lot issue. I should have brought extra shoes in my drop back. Overall, cool running weather, A lot of hills as expected in Marin Headlands, well organized event. Photo credited: Marcia D./Chad S.