All Tennis Players How Many Grand Slams Has Michael Chang Won? Michael Te-Pei Chang (born February 22, 1972) is an American businessman and former professional tennis player.Michael Chang has won 1 Grand Slam.Michael Chang has won 1 Grand Slam. FacebookTwitterEmail How Many Grand Slams Has Madison Keys Won? How Many Grand Slams Has Jannik Sinner Won? How Many Majors Has John Isner Won?