Evonne Fay Goolagong Cawley is an Australian former professional tennis player. She was ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA), and was one of the world's leading players in the 1970s and early 1980s. Goolagong won 86 WTA Tour-level singles titles, including seven singles majors, and 46 doubles titles, including seven doubles majors. WTA world No. 1 from April 26, 1976 to May 9, 1976 — 2 weeks. Wiki link