2018 Japan Women's Open

2018 Japan Women's Open
2018 Japan Women's Open
Date	September 10–16
Edition	10th
Category	WTA International
Draw	32S / 16D
Prize money	$250,000
Surface	Hard
Location	Hiroshima, Japan
Venue	Regional Park Tennis Stadium
Champions
Singles
	Hsieh Su-wei
Doubles
	Eri Hozumi / Zhang Shuai

Last updated December 13, 2025

The 2018 Japan Women's Open was a women's tennis tournament played on outdoor hard courts. It was the tenth edition of the Japan Women's Open, and part of the WTA International tournaments of the 2018 WTA Tour. It was held at the Regional Park Tennis Stadium in Hiroshima, Japan, from September 10 through September 16, 2018. This is the first year that the tournament was held in Hiroshima.^[1]

Finals

Singles

Hsieh Su-wei defeated Amanda Anisimova 6–2, 6–2

Doubles

Eri Hozumi / Zhang Shuai defeated Miyu Kato / Makoto Ninomiya 6–2, 6–4

Point distribution

Event	W	F	SF	QF	Round of 16	Round of 32	Q	Q3	Q2	Q1
Singles	280	180	110	60	30	1	18	14	10	1
Doubles	280	180	110	60	1	—	—	—	—	—

Prize money

Event	W	F	SF	QF	Round of 16	Round of 32¹	Q3	Q2	Q1
Singles	$43,000	$21,400	$11,300	$5,900	$3,310	$1,925	$1,005	$730	$530
Doubles²	$12,300	$6,400	$3,435	$1,820	$960	—	—	—	—

_{¹ Qualifiers prize money is also the Round of 32 prize money}
_{² Per team}

Singles main-draw entrants

Seeds

Country	Player	Rank¹	Seed
CHN	Zhang Shuai	34	1
TPE	Hsieh Su-wei	43	2
KAZ	Yulia Putintseva	50	3
CHN	Wang Qiang	52	4
AUS	Ajla Tomljanović	58	5
KAZ	Zarina Diyas	60	6
CHN	Zheng Saisai	63	7
POL	Magda Linette	68	8

Rankings are as of August 27, 2018

Other entrants

The following players received wildcards into the singles main draw:

The following player entered the singles main draw with a protected ranking:

Mandy Minella

The following players received entry from the qualifying draw:

Withdrawals

Before the tournament

Ana Bogdan → replaced by Fiona Ferro
Jennifer Brady → replaced by Jana Fett
Aliaksandra Sasnovich → replaced by Duan Yingying
Stefanie Vögele → replaced by Magdalena Fręch

Retirements

Yulia Putintseva (lower back injury)