In 2012, Felix returned to the Olympic trials, choosing to race the 100 meters in addition to her main event, the 200 meters. The top three finishers in each event qualify for the 2012 Summer Olympics team. In the 100 meters final, she ran 11.07 seconds, placing third, but not without controversy. Officials ruled that training partners Felix and Jeneba Tarmoh were in a dead heat for third place, the final qualification position, after initially declaring Tarmoh ahead. A run-off between Tarmoh and Felix was scheduled, but Tarmoh eventually withdrew due to emotional and physical fatigue, conceding the final 100-meter spot to Felix. In the 200 meters final at the 2012 Olympic trials, Felix recorded a personal best and a meet record of 21.69 seconds, the third-fastest time an American has ever run and the fourth-fastest ever, up until that point. Carmelita Jeter and Sanya Richards-Ross placed second and third, respectively.