Billy jean king-on September 20, 1973, in front of a crowd of more than 30,000 spectators at the Houston astrodome, female tennis star billy jean king defeated Bobby Riggs in a much-publicized battle of the sexes tennis match. Riggs had boasted that no woman could defeat a professional male player because women were simply the weaker sex. this chauvinistic attitude was a sore spot with female players who made much less money than the top male athletes. king, a vocal supporter of women's rights, accepted Riggs challenge and defeated him soundly, winning in straight sets, 6-4, 6-3, 6-3.