High temperatures didn't slow the field much in a variety of races in Eagle Rock, Calif.
Also competing will be Alan Webb, who is retiring from professional running to focus on triathlon
American runners had a good showing last week in Moscow!
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.
The 17-year-old finished second in the women's 1,500m final at the U.S. Championships.
Most of the pre-meet contenders advanced through the preliminary rounds.
The Olympic silver medalist prevailed with a huge kick.
The 22-year-old will run the Fifth Avenue Mile on Sunday.