All Tennis Players How Many Grand Slams Has Darlene Hard Won? Darlene Ruth Hard (January 6, 1936 – December 2, 2021) was an American professional tennis player.Darlene Hard has won 3 Grand Slams. FacebookTwitterEmail How Many Grand Slams Has Madison Keys Won? How Many Grand Slams Has Jannik Sinner Won? How Many Majors Has John Isner Won?