1990 Holden NSW Open – Women's singles

Martina Navratilova was the defending champion, but did not compete this year.

Natasha Zvereva won the title by defeating Barbara Paulus 4–6, 6–1, 6–3 in the final.^[1][2]

The top eight seeds received a bye to the second round.

	Quarterfinals							Semifinals							Final
	13	Radka Zrubáková	2	1
	10	Barbara Paulus	6	6
								10	Barbara Paulus	6	3	6
								16	Judith Wiesner	4	6	1
	16	Judith Wiesner	6	4	6
		Claudia Porwik	3	6	3
															10	Barbara Paulus	6	1	3
															11	Natasha Zvereva	4	6	6
	Q	Julie Halard	6	2	4
	11	Natasha Zvereva	4	6	6
								11	Natasha Zvereva	6	2	6
								14	Amy Frazier	3	6	2
	7	Raffaella Reggi	3	5
	14	Amy Frazier	6	7

	First round							Second round							Third round							Quarterfinals
								1	H Suková	6	6
		A Grossman	6	6					A Grossman	2	4
	WC	M Jaggard	0	4											1	H Suková	1	6	3
		A Henricksson	3	7	6										13	R Zrubáková	6	1	6
	Q	A Nishiya	6	5	2				A Henricksson	3	6	66
	Q	D Van Rensburg	1	0				13	R Zrubáková	6	2	78
	13	R Zrubáková	6	6																		13	R Zrubáková	2	1
	10	B Paulus	5	6	6																	10	B Paulus	6	6
		C Cunningham	7	1	4			10	B Paulus	77	66	6
		JA Faull	3	2					B Schultz	63	78	1
		B Schultz	6	6											10	B Paulus	77	6
		N Provis	6	6												N Provis	63	2
		C Tanvier	0	3					N Provis	6	77
								8	R Fairbank	2	62

	First round							Second round							Third round							Quarterfinals
								4	H Mandlíková	6	6
		E Smylie	7	63	6				E Smylie	2	2
	WC	L Field	5	77	4										4	H Mandlíková	65	3
		A Temesvári	3	2											16	J Wiesner	77	6
		M Bollegraf	6	6					M Bollegraf	3	2
		K Quentrec	5	4				16	J Wiesner	6	6
	16	J Wiesner	7	6																		16	J Wiesner	6	4	6
	12	P Fendick	7	5	2																		C Porwik	3	6	3
		C Porwik	5	7	6				C Porwik	6	6
		C Kohde-Kilsch	2	5					E Burgin	3	3
		E Burgin	6	7												C Porwik	6	6
		J Pospíšilová	77	6												J Pospíšilová	1	0
		R Rajchrtová	64	1					J Pospíšilová	6	66	7
								5	P Shriver	4	78	5

	First round							Second round							Third round							Quarterfinals
								6	L Savchenko	4	5
		L McNeil	2	6	5			Q	J Halard	6	7
	Q	J Halard	6	1	7										Q	J Halard	6	0	6
		S Martin	2	6	5											P Langrová	2	6	4
		T Phelps	6	0	7				T Phelps	5	3
		P Langrová	6	6					P Langrová	7	6
	15	A Minter	4	4																		Q	J Halard	6	2	4
	11	N Zvereva	6	6																		11	N Zvereva	4	6	6
		A Kijimuta	3	1				11	N Zvereva	6	6
		L Golarsa	6	6					L Golarsa	4	3
	WC	K Radford	3	2											11	N Zvereva	6	6
		K Adams	2	2												I Demongeot	1	1
		I Demongeot	6	6					I Demongeot	6	4	77
								3	H Kelesi	2	6	64

	First round							Second round							Third round							Quarterfinals
								7	R Reggi	6	5	6
		E Inoue	4	6	5				S Stafford	4	7	1
		S Stafford	6	4	7										7	R Reggi	6	7
	Q	N Miyagi	4	3											9	G Fernández	1	5
	Q	Ca MacGregor	6	6				Q	Ca MacGregor	0	6	3
		H Cioffi	3	1				9	G Fernández	6	4	6
	9	G Fernández	6	6																		7	R Reggi	3	5
	14	A Frazier	3	6	6																	14	A Frazier	6	7
		N Jagerman	6	4	3			14	A Frazier	6	6
	Q	N Herreman	1	6	6			Q	N Herreman	4	0
	Q	T Whitlinger	6	3	1										14	A Frazier	6	6
	Q	R White	6	2	4										2	J Novotná	3	4
		R McQuillan	4	6	6				R McQuillan	1	4
								2	J Novotná	6	6

• Official results archive (ITF)
• Official results archive (WTA)