Wyomia Tyus is a retired American track and field sprinter, and the first person to retain the Olympic title in the 100 m. Wyomia Tyus (United States) set the women's 100 m world record of 11.1 in Kyiv, Soviet Union on July 31, 1965. It stood 23 months, until Barbara Ferrell's 11.1 on July 2, 1967 (equalling it). Wiki link