2018 Toray Pan Pacific Open
The 2018 Toray Pan Pacific Open is a women's tennis tournament played on indoor hard courts. It was the 35th edition of the Pan Pacific Open, and part of the Premier Series of the 2018 WTA Tour. It took place at the Arena Tachikawa Tachihi in Tachikawa, Tokyo, Japan, on 17–23 September 2018.
Finals
Singles
- Karolína Plíšková defeated Naomi Osaka 6–4, 6–4
Doubles
- Miyu Kato / Makoto Ninomiya defeated Andrea Sestini Hlaváčková / Barbora Strýcová, 6–4, 6–4
Singles main-draw entrants
Seeds
- Rankings are as of September 10, 2018
Other entrants
The following players received wild cards into the main singles draw:The following players received entry from the singles qualifying draw:
Withdrawals
- Mihaela Buzărnescu → replaced by Aliaksandra Sasnovich
- Angelique Kerber → replaced by Belinda Bencic
- Madison Keys → replaced by Anett Kontaveit
- Elise Mertens → replaced by Anastasia Pavlyuchenkova
- Anastasija Sevastova → replaced by Camila Giorgi
- Carla Suárez Navarro → replaced by Donna Vekić
Retirements
Doubles main-draw entrants
Seeds
- Rankings are as of September 10, 2018