Cynthia Doerner

Cynthia Doerner (née Sieler) (born 11 February 1951) is an Australian^[2] former international tennis player. She competed in the Australian Open seven times, thrice as Cynthia Sieler (1968, 1970 and 1971)^[3] and four times as Cynthia Doerner, from 1973 to 1979.^[4]

Cynthia Doerner

Full name	Cynthia Doerner Sieler
Country (sports)	Australia
Born	(1951-02-11) 11 February 1951 (age 74)
Height	168 cm (5 ft 6 in) [1]
Turned pro	1970 (1967 amateur)
Retired	1980
Plays	Right-handed
Singles
Career record	154-170 (47.5%)
Career titles	5
Grand Slam singles results
Australian Open	QF (1979)
French Open	3R (1976)
Wimbledon	3R (1976, 1977, 1979)
US Open	2R (1975, 1977, 1978)
Doubles
Career record	34–49
Career titles	3
Grand Slam doubles results
Australian Open	SF (1973)
French Open	SF (1977)
Wimbledon	QF (1973)
US Open	3R (1977)
Grand Slam mixed doubles results
French Open	QF (1973)
Wimbledon	3R (1979)

Her career singles highlights include winning the Connaught Hard Court Championships in 1972, the New York Invitational in 1975, the Surrey Grass Court Championships in 1979.