Inducted into the Australian Tennis Hall of Fame in 2009.
Turnbull turned pro in 1975 and was quickly nicknamed 'Rabbit'' by her peers, such was her speed around the court. In an illustrious career she made the final of every Grand Slam except Wimbledon.
Turnbull's consistency on the tour was exceptional, achieving a top 10 year-end world ranking for eight consecutive years (1977-1984) and a year-end top 20 ranking for 10 straight years (1977-1986).
She achieved her highest singles ranking of No.3 in January 1985. In doubles she paired with Kerry (Melville) Reid to win the 1978 Wimbledon crown, with Betty Stove to win the 1979 US and French titles, and with Rosemary Casals to win the 1982 US Open.
She also made another 11 major doubles finals, won five mixed doubles titles and teamed with Liz Smylie to win the bronze medal at the 1988 Seoul Olympics. Turnbull played a record 45 Fed Cup ties for Australia and later served as captain.