Stephanie Brown Trafton won the discus at the U.S. track trials with a throw of 213 feet, 10 inches for a chance to defend her Olympic gold medal in London.
Aretha Thurmond was second at 204-2 for a spot on her fourth Olympic team.
American record-holder Suzy Powell-Roos finished third in the event at Hayward Field on Sunday with a throw of 197-6, but she doesn't have the Olympic "A'' standard of 203-5 required to make the team.
The third spot on the U.S. team went to fifth-place finisher Gia Lewis-Smallwood, who has met the standard this season. Her best throw Sunday was 192-10.