I've never had a DNF. Guess what? It sucks.
Starting about mile 15, a sharp pain appeared in my right hip-flexor/groin area. I stopped a few times to stretch it and continued to push through the pain. By the time I had made my way over Goldmine Mountain for the second time, I was noticeably hobbling and favoring my right side. Each step was more painful than the last.
I'm not one who needs to prove a point for the sake of being macho or manly. I know my body and I know my limits.
Today, I had reached my limits.