The Billie Jean King Cup is the premier international team competition in women's tennis, launched as the Federation Cup in 1963 to celebrate the 50th anniversary of the International Tennis Federation (ITF). The name was changed to the Fed Cup in 1995, and changed again in September 2020 in honor of former World No. 1 Billie Jean King. The Billie Jean King Cup is the world's largest annual women's international team sports competition in terms of the number of nations that compete. The current Chairperson is Katrina Adams.

Darlene Ruth Hard was an American professional tennis player, known for her aggressive volleying ability and strong serves. She captured singles titles at the French Championships in 1960 and the U.S. Championships in 1960 and 1961.