The 17-year-old broke her own world junior record in the 1000m.
Relive the action at the 19th annual New Balance Games, which took place over the weekend in New York.
The Olympian set a new facility record of 4:24.54 in the women's mile.
The two men put on a show at the 2013 Millrose Games, with Sowinski breaking the American record.
Four top middle-distance runners are gunning for the American 1K record.
The American was passed by Ethiopian Mohammed Aman with 20 meters to go.
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.
Stacked final set for Sunday.
Most of the pre-meet contenders advanced through the preliminary rounds.