Singles
1991 Virginia Slims of Los Angeles
Final
Champion	Monica Seles
Runner-up	Kimiko Date
Score	6–3, 6–1
Details
Draw	56
Seeds	16
Events
Singles Doubles
← 1990 · LA Women's Tennis Championships · 1992 →

Monica Seles was the defending champion and successfully defended her title, by defeating Kimiko Date 6–3, 6–1 in the final. Despite the win, Seles lost the world No. 1 spot to Steffi Graf, as her opponent needed to be in a high ranking in order to Seles to earn bonus points (Date was No. 112 while Gabriela Sabatini, defeated at the semifinals, was No. 3)^{[1][2][3][4][5]}

Date also became the first Japanese female player on reaching the final of any Tier II tournament.^[2]

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

	Quarterfinals							Semifinals							Final
	1	Monica Seles	6	6
		Mercedes Paz	2	2
								1	Monica Seles	65	6	6
								3	Arantxa Sánchez Vicario	77	4	4
	3	Arantxa Sánchez Vicario	4	6	6
	6	Helena Suková	6	4	0
															1	Monica Seles	6	6
															Q	Kimiko Date	3	1
	Q	Kimiko Date	6	6
		Jo Durie	4	1
								Q	Kimiko Date	3	6	6
								2	Gabriela Sabatini	6	1	4
	8	Lori McNeil	3	6	5
	2	Gabriela Sabatini	6	4	7

	First round							Second round							Third round							Quarterfinals
								1	M Seles	6	6
		E Reinach	5	6	6				E Reinach	1	0
		C Wood	7	1	3										1	M Seles	6	6
		P Fendick	0	2												A Coetzer	4	1
		R White	6	6					R White	4	4
		A Coetzer	6	7					A Coetzer	6	6
	14	R Rajchrtová	4	5																		1	M Seles	6	6
	16	A Minter	3	6	1																		M Paz	2	2
		N Bradtke	6	4	6				N Bradtke	6	62	3
		E deLone	1	6	3				M Paz	3	77	6
		M Paz	6	3	6											M Paz	3	78	6
		L Ferrando	6	6											7	A Frazier	6	66	1
	Q	S Gomer	3	4					L Ferrando	4	2
								7	A Frazier	6	6

	First round							Second round							Third round							Quarterfinals
								3	A Sánchez Vicario	6	6
		I Demongeot	77	6					I Demongeot	2	3
		A May	63	3											3	A Sánchez Vicario	6	6
	LL	JA Faull	3	1												P Paradis-Mangon	1	3
	Q	Stephanie Martin	6	6				Q	Stephanie Martin	3	6	4
		P Paradis-Mangon	1	6	6				P Paradis-Mangon	6	3	6
		R Fairbank-Nideffer	6	3	3																	3	A Sánchez Vicario	4	6	6
	11	M Pierce	6	4	6																	6	H Suková	6	4	0
		P Tarabini	2	6	0			11	M Pierce	6	6
		N van Lottum	6	6					N van Lottum	2	2
		S Stafford	3	4											11	M Pierce	77	2	2
	Q	N Herreman	6	6											6	H Suková	64	6	6
	Q	C Toleafoa	3	1				Q	N Herreman	0	4
								6	H Suková	6	6

	First round							Second round							Third round							Quarterfinals
								5	L Meskhi	4	1
	Q	K Date	6	6				Q	K Date	6	6
		C Dahlman	2	2											Q	K Date	6	6
		L Savchenko	0	0											10	Y Basuki	2	2
		A Grossman	6	6					A Grossman	3	4
		C Porwik	6	2	4			10	Y Basuki	6	6
	10	Y Basuki	2	6	6																	Q	K Date	6	6
	13	T Whitlinger	3	77	4																		J Durie	4	1
		G Magers	6	63	6				G Magers	6	7
		G Helgeson	7	6					G Helgeson	4	5
		M Javer	5	2												G Magers	3	4
		P Harper	6	3	3											J Durie	6	6
		J Durie	2	6	6				J Durie	6	63	7
								4	Z Garrison	3	77	5

	First round							Second round							Third round							Quarterfinals
								8	L McNeil	6	6
	Q	M Endo	2	3				Q	S Rottier	1	4
	Q	S Rottier	6	6											8	L McNeil	65	6	6
		A Dechaume	6	6											15	C Lindqvist	77	0	1
		K Po	1	1					A Dechaume	6	1	2
		C Benjamin	5	3				15	C Lindqvist	2	6	6
	15	C Lindqvist	7	6																		8	L McNeil	3	6	5
	12	S Sloane	1	1r																		2	G Sabatini	6	4	7
		D Graham	6	2					D Graham	6	6
		C Suire	6	5	1			Q	P Kamstra	1	0
	Q	P Kamstra	4	7	6											D Graham	3	1
		P Hy	6	7											2	G Sabatini	6	6
	LL	H Ludloff	4	5					P Hy	3	0
								2	G Sabatini	6	6

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