Billie Jean King

Billie Jean King is an American former world No. 1 tennis player widely regarded as one of the most important figures in the sport's history, both for her on-court achievements and for her advocacy for gender equality. Over her career she won 39 Grand Slam titles across singles, women's doubles and mixed doubles.

Early life

Billie Jean King was born Billie Jean Moffitt on November 22, 1943, in Long Beach, California. She grew up in an athletic family and took up tennis as a child, learning on public courts. Competing in an era when tennis was largely associated with private clubs, she became aware early of the sport's social and economic barriers, themes that would shape her later activism.

Career

King rose to the top of women's tennis during the 1960s and 1970s, winning numerous singles titles at Wimbledon, the US Championships/US Open, the Australian Championships and the French Championships. She was known for an aggressive serve-and-volley game and a fierce competitive temperament.

Beyond her results, King became a central figure in the movement for equal treatment of women in sport. She was instrumental in the founding of the Women's Tennis Association and campaigned for equal prize money for female players. In 1973 she played Bobby Riggs in the nationally televised exhibition known as the "Battle of the Sexes," defeating him in a match that became a cultural landmark in discussions of gender and sport. That same era saw her push for professional structures that gave women players greater independence and financial security.

Recent work

After retiring from competitive play, King remained active as an advocate, businesswoman and public figure. She has been a prominent campaigner for LGBTQ rights and for equality in sport, drawing in part on her own experience as one of the first major athletes to be publicly identified as gay. Various honors and institutions have been named in her recognition, including the national tennis center in New York that hosts the US Open, which was renamed in her honor. She has been involved in team ownership and in organizations promoting women in sport, and she helped establish initiatives aimed at advancing leadership and equality for women. She has received numerous awards acknowledging both her athletic record and her contributions to social change, including high civilian honors. Her life and the 1973 match have been the subject of documentaries and a feature film. King continues to be cited as a pioneer whose influence extended well beyond tennis, helping to reshape expectations around women's professional sport, equal pay and the visibility of LGBTQ athletes, and she remains an active voice in discussions about the future of the game.