The 1973 Australian Open was a tennis tournament played on outdoor grass courts at the Kooyong Lawn Tennis Club in Melbourne in Australia and was held from 26 December 1972 to 1 January 1973. It was the 61st edition of the Australian Open and the first Grand Slam tournament of the year. Australian Open 1973: December 26–26, 1973 at Kooyong Lawn Tennis Club. Men's singles: John Newcombe — 6th major title. Women's singles: Margaret Court — 24th major title. Wiki link