1999 Japan Open Tennis Championships – Women's singles

The 19999 Japan Open Tennis Championships women's singles was the women's singles event of the twenty-fifth edition of the Japan Open; a WTA Tier III tournament held in Tokyo, Japan. Ai Sugiyama was the defending champion but lost in the final 6–2, 6–2 against Amy Frazier.

Women's singles
1999 Japan Open Tennis Championships
Champion	Amy Frazier
Runner-up	Ai Sugiyama
Score	6–2, 6–2
Draw	32 (4 Q / 2 WC )
Seeds	8

Seeds

1. Ai Sugiyama (final)
2. Amy Frazier (champion)
3. Corina Morariu (semifinals)
4. Kimberly Po (second round)
5. Kristina Brandi (first round)
6. Meghann Shaughnessy (first round)
7. Jane Chi (semifinals)
8. Wang Shi-ting (quarterfinals)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

Finals

	Semifinals							Final
	1	Ai Sugiyama	77	6
	7	Jane Chi	65	3
								1	Ai Sugiyama	2	2
								2	Amy Frazier	6	6
	3	Corina Morariu	4	7	3
	2	Amy Frazier	6	5	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	A Sugiyama	6	6
	LL	W Prakusya	1	3				1	A Sugiyama	6	6
		L Němečková	7	6					L Němečková	4	1
	Q	K Schlukebir	5	4											1	A Sugiyama	6	6
		S Reeves	2	2												J Lee	4	0
		J Lee	6	6					J Lee	77	6
		J Watanabe	6	6					J Watanabe	64	3
	5	K Brandi	4	2																		1	A Sugiyama	77	6
	4	K Po	7	6																		7	J Chi	65	3
		M Saeki	5	2				4	K Po	5	6	3
		S-h Park	4	2					S Kleinová	7	4	6
		S Kleinová	6	6												S Kleinová	2	0r
	Q	M Miyauchi	6	3	4										7	J Chi	6	3
		S de Beer	4	6	6				S de Beer	4	3
	Q	Y-j Cho	4	1				7	J Chi	6	6
	7	J Chi	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	S-t Wang	6	6
	WC	S Obata	4	2				8	S-t Wang	6	6
		S Noorlander	4	65					Y Yoshida	1	4
		Y Yoshida	6	77											8	S-t Wang	77	3	4
		M Washington	6	6											3	C Morariu	63	6	6
	Q	H Collin	3	4					M Washington	2	0
		M Maruska	3	2				3	C Morariu	6	6
	3	C Morariu	6	6																		3	C Morariu	4	7	3
	6	M Shaughnessy	3	5																		2	A Frazier	6	5	6
		M Tu	6	7					M Tu	2	6	6
		L Wild	3	1				WC	S Asagoe	6	3	3
	WC	S Asagoe	6	6												M Tu	7	4	4
		L Andretto	4	3											2	A Frazier	5	6	6
		K-A Guse	6	6					K-A Guse	63	0
		H Inoue	0	3				2	A Frazier	77	6
	2	A Frazier	6	6

Qualifying

Seeds

1. Wynne Prakusya (qualifying competition, lucky loser)
2. Kim Eun-ha (second round)
3. Cho Yoon-jeong (qualifier)
4. Katie Schlukebir (qualifier)
5. Misumi Miyauchi (qualifier)
6. Akiko Morigami (second round)
7. Tomoe Hotta (first round)
8. Adrienn Hegedűs (first round)

Qualifiers

1. Misumi Miyauchi
2. Cho Yoon-jeong
3. Katie Schlukebir
4. Hannah Collin

Lucky losers

1. Wynne Prakusya

Qualifying draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

First qualifier

	First round							Second round							Qualifying competition
	1	Wynne Prakusya	6	6
		Keiko Tameishi	0	0
								1	Wynne Prakusya	6	79
									Yoshiko Sasano	4	67
		Yoshiko Sasano	6	7
		Miyako Ataka	1	5
															1	Wynne Prakusya	3	2
															5	Misumi Miyauchi	6	6
		Shiho Hisamatsu	2
		Akiko Gunji	1r
									Shiho Hisamatsu	7	2	1
								5	Misumi Miyauchi	5	6	6
		Sachie Umehara	6	4	1
	5	Misumi Miyauchi	2	6	6

Second qualifier

	First round							Second round							Qualifying competition
	3	Cho Yoon-jeong	6	6
		Madoka Kuki	2	0
								3	Cho Yoon-jeong	6	6
									Maiko Inoue	2	4
		Maiko Inoue	6	6
		Kazue Takuma	2	0
															3	Cho Yoon-jeong	6	6
																Iroda Tulyaganova	4	3
		Keiko Nagatomi	6	6
	WC	Yumi Yokoi	3	2
									Keiko Nagatomi	0	4
									Iroda Tulyaganova	6	6
		Iroda Tulyaganova	6	6
	8	Adrienn Hegedűs	3	2

Third qualifier

	First round							Second round							Qualifying competition
	7	Tomoe Hotta	6	2	63
		Akiko Kinebuchi	4	6	77
									Akiko Kinebuchi	6	6
									Hiroko Mochizuki	1	3
		Hiroko Mochizuki	1	6	6
		Riei Otakeyama	6	3	4
																Akiko Kinebuchi	5	4
															4	Katie Schlukebir	7	6
		Seiko Okamoto	4	6	6
		Benjamas Sangaram	6	4	1
									Seiko Okamoto	3	0
								4	Katie Schlukebir	6	6
		Nami Urabe	3	3
	4	Katie Schlukebir	6	6

Fourth qualifier

	First round							Second round							Qualifying competition
	6	Akiko Morigami	6	6
		Keiko Ishida	0	2
								6	Akiko Morigami	6	4	1
									Hannah Collin	1	6	6
		Hannah Collin	6	6
	WC	Eri Ohmi	0	2
																Hannah Collin	6	6
															WC	Keiko Taguchi	0	2
		Chiaki Nakajima	1	79	3
	WC	Keiko Taguchi	6	67	6
								WC	Keiko Taguchi	6	2	6
								2	Kim Eun-ha	4	6	4
	WC	Kaori Goto	4	1
	2	Kim Eun-ha	6	6