At 34 weeks pregnant, four-time defending U.S. 800m champion Alysia Montano competed on Thursday.
The 28-year-old received a standing ovation from the crowd.
The United States won at least one medal in all four middle distance finals.
Our picks of the best moments from the 2013 USA Track & Field Outdoor Championships.
Men's, women's 800m winners triumph in quick fashion on the final day of the USA Outdoor Track & Field Championships.
The 17-year-old is having a phenomenal season thus far.
There's a good chance for a new American record there.
Mario Fraioli shares his top-10 moments from last week's Olympic Track & Field Trials. What were yours?
Mario Fraioli wraps up an exciting end to the first half of competition!