Robert Larimore "Bobby" Riggs (February 25, 1918 – October 25, 1995) was an American tennis player who was the World No. 1 or the World co-No. 1 player for three years, first as an amateur in 1939, then as a professional in 1946 and 1947. He played his first professional tennis match on December 26, 1941.At the age of 55 he competed in a challenge match against Billie Jean King, one of the top female players in the world.