Billie Jean King – $20 Million
When it comes to professional female tennis players names list, the name Billy Jean King is counted as one of the most important athletic body of the past century. She won the battle of sexes match against Bobby Riggs in 1973. In her professional career Billy won titles of 39 grand slams that include of 12 singles, 16 doubles and 11 mixed doubles. This 1943 born sporting star is still worth some $20 million by proving her importance in sports in the past.