All Tennis Players How Many Grand Slams Has Anthony Wilding Won? Anthony Frederick Wilding (31 October 1883 – 9 May 1915), also known as Tony Wilding, was a New Zealand world No. 1 tennis player.Anthony Wilding has won 6 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?