Martinez finished 17th in 15:43 in his first national championship meet after the 5-foot-5, 105-pound runner got boxed in early in the field of nearly 200 runners in cloudy conditions with temperatures in the high 30s.

"I got bumped around so much and slapped in the face a couple of times," Martinez said. "Wow. I was not expecting that. This has to be the most physical race that I have ever done."