Has won 39 Grand Slam championships overall in singles, doubles, and mixed doubles, including 12 Grand Slam singles titles. Is the founder and first president of the Women’s Tennis Association (WTA).

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Billie Jean King is one of the most decorated players to play the sport, earning 39 Grand Slam titles during her playing career, including four U.S. Open singles titles. Off the court, she is known ...

Forbes contributors publish independent expert analyses and insights. Erin Spencer Sairam covers gender and politics. Few stand as tall in the world of women’s sports as Billie Jean King. The ...

In theory, Billie Jean King should have nothing left to prove. A glittering haul of 39 grand slam titles across singles, doubles and mixed doubles is one of the greatest tennis careers of all time, ...