1978 Australian Open
The 1978 Australian Open was a tennis tournament played on outdoor grass courts at the Kooyong Stadium in Melbourne, Australia and was held from 25 December 1978 to 3 January 1979. It was the 67th edition of the Australian Open and the fourth Grand Slam tournament of the year. The singles titles were won by Argentinian Guillermo Vilas and Australian Chris O'Neil.Seniors
Men's singles
Guillermo Vilas defeated John Marks, 6–4, 6–4, 3–6, 6–3Women's singles
Chris O'Neil defeated Betsy Nagelsen, 6–3, 7–6Wojciech Fibak / Kim Warwick defeated Paul Kronk / Cliff Letcher, 7–6, 7–5Women's doubles
Betsy Nagelsen / Renáta Tomanová defeated Naoko Sato / Pam Whytcross, 7–5, 6–2This event was not held from 1970 until 1985.
