[2] The Australian Open was once referred to as the "fifth major" by Jack Nicklaus and Rory McIlroy.

From 1899 to 1902 this included the Australian Amateur championship contested over 72 holes of stroke play.

The stroke-play event became the first Australian Open and was won by an English amateur, Michael Scott, with a score of 315.

Two more amateurs Leslie Penfold Hyland and Dan Soutar finished second and third, while Carnegie Clark was the leading professional, tied for fourth place.

[8][9][10] The 1910 open was held in South Australia for the first time and resulted in a second win for Clark, with a record score of 306, 11 strokes ahead of Soutar.

[11] Clark won for the third time the following year, although only by a single shot from Fred Popplewell.

[24] The 1930 open was the first to be held at the Metropolitan Golf Club and the winner, Frank Eyre, was the first to be presented with the Stonehaven Cup.

[26] He didn't win the open until 1938, when he won by a record 14 strokes from Norman Von Nida.

However Billy Bolger won the open with a new record score of 283, with Sarazen second and Kirkwood fourth.

[30] The championship resumed in 1946 at Royal Sydney and was won by Ossie Pickworth, who finished two ahead of the amateur Alan Waterson.

However, the Open no longer acted as a qualifying event for the amateur championship, which became match-play only.

He still led by 4 at the start of the final round but took 78, while Pickworth scored 69 to retain his title by 5 shots.

[34] Pickworth won the 18 hole playoff with a score of 71 to Ferrier's 74, to win his third successive title.

Pickworth was later disqualified for recording an incorrect score at his final hole, so that Norman Von Nida, playing in his first open since 1939, became the runner-up.

[45] Kel Nagle had been close to winning a number of times and won his only open in 1959.

[46] The 1960 open was held at Lake Karrinyup for the second time, a week after the amateur championship.

[51] Player won his fourth title in 1965, setting a new record score of 264, despite taking a bogey-5 at the final hole.

Arnold Palmer made his debut in the event and won by 5 strokes from Kel Nagle.

[54] Jack Nicklaus won for the second time in 1968, beating Gary Player by a stroke after making a birdie-3 at the final hole.

[56][57] In difficult conditions, Player had a final round 77, but still won his 5th title in 1969, equalling Ivo Whitton's record.

[61] Graham drove out-of-bounds at the first hole and Thomson took a three-stroke lead after making a birdie.

[66][67] The 1981 event was multi-sponsored, without a title sponsor, and was won by Bill Rogers, beating Norman by a stroke.

It was announced that the 2022 tournament would feature the men's and women's Opens played on the same course at the same time.

In addition to this announcement, it was also confirmed that the European Tour would sanction the men's event for the first time.