All Tennis Players How Many Grand Slams Has Jack Kramer Won? John Albert Kramer (August 1, 1921 – September 12, 2009) was an American tennis player.Jack Kramer 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?
