Singles
1990 Virginia Slims of California
Final
Champion	Monica Seles
Runner-up	Martina Navratilova
Score	6–3, 7–6(7–5)
Details
Draw	28
Seeds	8
Events
Singles Doubles
← 1989 · Silicon Valley Classic · 1991 →

Zina Garrison was the defending champion, but lost in the semifinals to Monica Seles.

Seles won the title by defeating Martina Navratilova 6–3, 7–6^(7–5) in the final.^[1][2][3]

	Semifinals							Final
	1	Martina Navratilova	6	6
		Meredith McGrath	4	3
								1	Martina Navratilova	3	65
								2	Monica Seles	6	77
	3	Zina Garrison	1	6	2
	2	Monica Seles	6	3	6

	First round							Second round							Quarterfinals							Semifinals
								1	M Navratilova	6	6
		P Tarabini	3	4					R White	2	3
		R White	6	6											1	M Navratilova	6	6
		R Zrubáková	6	6												R Zrubáková	2	0
		D Faber	1	1					R Zrubáková	6	6
		A Henricksson	69	4				6	J Wiesner	2	1
	6	J Wiesner	711	6																		1	M Navratilova	6	6
																							M McGrath	4	3
								4	B Paulus	77	1	0
		M McGrath	6	7					M McGrath	64	6	6
		S Martin	1	5												M McGrath	6	4	6
		A May	62	5												R Fairbank-Nideffer	3	6	3
		R Fairbank-Nideffer	77	7					R Fairbank-Nideffer	77	6
		P Louie Harper	3	2				8	A Smith	65	1
	8	A Smith	6	6

	First round							Second round							Quarterfinals							Semifinals
	5	A Frazier	6	4	6
		A Leand	0	6	2			5	A Frazier	64	77	4
		M Paz	6	3	3				M Werdel	77	64	6
		M Werdel	4	6	6											M Werdel	77	1	2
		ML Daniels	3	6	6										3	Z Garrison	63	6	6
		M Javer	6	2	4				ML Daniels	2	5
								3	Z Garrison	6	7
																						3	Z Garrison	1	6	2
	7	L Gildemeister	7	6																		2	M Seles	6	3	6
		P Fendick	5	0				7	L Gildemeister	4	4
		M Pierce	77	1	2				S Rehe	6	6
		S Rehe	65	6	6											S Rehe	1	2
		A Temesvári	6	6											2	M Seles	6	6
		F Labat	2	0					A Temesvári	1	2
								2	M Seles	6	6

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