All Tennis Players How Many Grand Slams Has Iva Majoli Won? Iva Majoli-Marić (born 12 August 1977) is a former professional tennis player.Iva Majoli 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?