Singles
2015 Japan Women's Open
Champion	Yanina Wickmayer
Runner-up	Magda Linette
Score	4–6, 6–3, 6–3

Samantha Stosur was the defending champion, but chose not to participate.

Yanina Wickmayer won the title, defeating Magda Linette in the final 4–6, 6–3, 6–3.

Seeds

Draw

Finals

	Semifinals							Final
		Yanina Wickmayer	7	6
	7	Ajla Tomljanović	5	2
									Yanina Wickmayer	4	6	6
									Magda Linette	6	3	3
	6	Christina McHale	6	4	3
		Magda Linette	3	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1/WC	C Suárez Navarro	4	4
		K Bondarenko	6	6					K Bondarenko	6	3	6
		J Gajdošová	6	6					J Gajdošová	1	6	4
	Q	A Panova	3	4												K Bondarenko	6	3	4
		K Siniaková	4	3												Y Wickmayer	3	6	6
		Y Wickmayer	6	6					Y Wickmayer	7	6
		Q Wang	6	3	3			5	J Larsson	5	3
	5	J Larsson	0	6	6																		Y Wickmayer	7	6
	3	M Brengle	6	6																		7	A Tomljanović	5	2
		A-L Friedsam	3	1				3	M Brengle	6	6
	WC	N Hibino	3	6	6			WC	N Hibino	1	2
	Q	H Kuwata	6	4	4										3	M Brengle	6	3	4
	WC	K Date-Krumm	6	6											7	A Tomljanović	1	6	6
		M Doi	4	2				WC	K Date-Krumm	65	3
		T Babos	6	4	62			7	A Tomljanović	77	6
	7	A Tomljanović	3	6	77

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	C McHale	6	7
		Y Putintseva	3	5				6	C McHale	6	7
		B Jovanovski	1	1				Q	R Ozaki	1	5
	Q	R Ozaki	6	6											6	C McHale	2	6	6
	Q	N Osaka	7	5	3											S Zheng	6	3	3
		I Falconi	5	7	6				I Falconi	4	2
		S Zheng	0	6	6				S Zheng	6	6
	4	A Riske	6	4	1																	6	C McHale	6	4	3
	8	P Hercog	1	7	5																		M Linette	3	6	6
		S-w Hsieh	6	5	7				S-w Hsieh	6	6
		A Mitu	1	4					K Nara	2	4
		K Nara	6	6												S-w Hsieh	3	3
		M Linette	6	6												M Linette	6	6
		L Davis	3	2					M Linette	6	7
		K Bertens	4	4				2	Z Diyas	2	5
	2	Z Diyas	6	6

Qualifying

Qualifying draw

First qualifier

	First round							Second round							Qualifying competition
	1	Kristýna Plíšková	6	7
		Eri Hozumi	4	5
								1	Kristýna Plíšková	2	3
									Shuko Aoyama	6	6
		Shuko Aoyama	6	7
	WC	Chihiro Muramatsu	0	5
																Shuko Aoyama	4	6	66
																Hiroko Kuwata	6	4	78
	Alt	Olga Savchuk	6	6
		Sara Sorribes Tormo	2	2
								Alt	Olga Savchuk	2	1
									Hiroko Kuwata	6	6
		Hiroko Kuwata	5	6	6
	6	Stefanie Vögele	7	0	4

Second qualifier

	First round							Second round							Qualifying competition
	2	Patricia Maria Țig	6	77
		Paula Badosa Gibert	3	65
								2	Patricia Maria Țig	6	6
								WC	Miyabi Inoue	1	3
	WC	Miyabi Inoue	77	0	6
		Han Na-lae	65	6	2
															2	Patricia Maria Țig	4	3
															5	Alexandra Panova	6	6
	Alt	Jang Su-jeong	62	0
	WC	Makoto Ninomiya	77	6
								WC	Makoto Ninomiya	1	3
								5	Alexandra Panova	6	6
		Katarzyna Piter	65	65
	5	Alexandra Panova	77	77

Third qualifier

	First round							Second round							Qualifying competition
	3	María Teresa Torró Flor	6	6
		Sorana Cîrstea	3	4
								3	María Teresa Torró Flor	6	6
								WC	Erika Sema	2	0
		Gabriela Dabrowski	78	2	4
	WC	Erika Sema	66	6	6
															3	María Teresa Torró Flor	0r
															7	Risa Ozaki	2
		Yang Zhaoxuan	6	2	6
		Riko Sawayanagi	2	6	3
									Yang Zhaoxuan	63	2
								7	Risa Ozaki	77	6
		Tereza Martincová	4	4
	7	Risa Ozaki	6	6

Fourth qualifier

	First round							Second round							Qualifying competition
	4	Wang Yafan	6	6
		Miyu Kato	0	1
								4	Wang Yafan	3	1
									Naomi Osaka	6	6
		Junri Namigata	4	3
		Naomi Osaka	6	6
																Naomi Osaka	78	6
																Luksika Kumkhum	66	1
		Luksika Kumkhum	4	7	6
		Misa Eguchi	6	5	4
									Luksika Kumkhum	79	3	6
									Xu Yifan	67	6	3
		Xu Yifan	6	6
	Alt	Ankita Raina	0	3

References

• Main Draw
• Qualifying Draw