Stephanie Rehe was the defending champion but did not compete that year.

Steffi Graf won in the final 6–4, 7–5 against Zina Garrison.^[1]

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.

	First round							Second round							Quarterfinals							Semifinals							Final
	1	S Graf	6	6
		R Simpson	0	0				1	S Graf	6	6
		E Smylie	5	6	3				B Nagelsen	1	1
		B Nagelsen	7	4	6										1	S Graf	6	6
		I Demongeot	5	6	6										7	C Kohde-Kilsch	0	0
		S Gomer	7	2	1				I Demongeot	1	6	1
		E Burgin	1	6	5			7	C Kohde-Kilsch	6	3	6
	7	C Kohde-Kilsch	6	3	7																	1	S Graf	6	6
	4	P Fendick	6	6																			B Bunge	1	2
	Q	L Harvey-Wild	4	1				4	P Fendick	6	5	0
		A Grossman	6	6					A Grossman	3	7	6
		E Pfaff	3	1												A Grossman	6	5	4
		J Durie	6	6												B Bunge	2	7	6
		R Casals	4	2					J Durie	1	1
		B Bunge	6	6					B Bunge	6	6
	5	L McNeil	2	3																									1	Steffi Graf	6	7
	6	N Tauziat	6	7																									2	Zina Garrison	4	5
	Q	G Helgeson	2	6				6	N Tauziat	6	1	6
		H Cioffi	7	1	2				G Fernández	3	6	1
		G Fernández	5	6	6										6	N Tauziat	4	6	7
	Q	L Green	6	3	6											R White	6	1	6
	Q	W White	3	6	7			Q	W White	3	4
		R White	7	6					R White	6	6
	3	S Sloane	5	3																		6	N Tauziat	1	5
	8	R Fairbank	6	4	3																	2	Z Garrison	6	7
		A Gavaldón	2	6	6				A Gavaldón	2	5
		P Paradis	1	5					G Magers	6	7
		G Magers	6	7												G Magers	4	5
		A Temesvári	2	6											2	Z Garrison	6	7
		T Phelps	6	7					T Phelps	5	7	0
		J Byrne	1	5				2	Z Garrison	7	6	6
	2	Z Garrison	6	7

• 1989 Great American Bank Classic draws