#18: The Battle of the Sexes: Billie Jean King defeats Bobby Riggs. (September 20)
With a global audience of more than 90 million viewers, the competitive tennis match between Billie Jean King and Bobby Riggs was televised from the Astrodome on September 20th, 1973. With an attendance of approximately 30,492, this match still holds the record for the largest audience ever at a live tennis match. King defeated Riggs 6-4, 6-4, 6-3.
