2. Youngest and Oldest Winner
Quite remarkably, the youngest as well as the oldest player ever to win Australian Open, in 1953 and 1972 is Ken Rosewall. He was aged 18 and 37 respectively.
Among female players, Martina Hingis holds the honour of being the youngest (she won at the age of 16). Thelma Coyne Long is the oldest female player (aged 35).