Serena Williams

Serena Williams holds 23 Grand Slam singles titles, the most in the Open Era, and spent 319 weeks as world #1—a dominance unmatched by any active player. She won the 2017 Australian Open while eight weeks pregnant, underscoring her physical prowess across genders. Her career prize money exceeds $94 million, more than three times that of #2 Simone Biles.