DATE: September 16-22, 2019
SURFACE: Hard
PRIZE MONEY: $823,000
FIELD SIZE: 32
DEFENDING CHAMPION: Karolina Pliskova
Seeds:
1. Naomi Osaka
2. Kiki Bertens
3. Sloane Stephens
4. Angelique Kerber
5. Madison Keys
6. Anastasija Sevastova
7. Donna Vekic
8. Petra Martic
The Tournament:
The tournament was first held in 1976 as the Sillook Open in Tokyo. In 1982 it was renamed the TV Tennis Open and in 1983 it changed yet again to the Queens Grand Prix. Its current name, the Pan Pacific Open, was designated in 1984 and had traditionally been played on indoor carpet. In 2008 the event moved to outdoor hard courts at the Ariake Coliseum. It was classified as a Tier I tournament from 1993 through 2008. Then it was a Premier 5 tournament until it was downgraded to a Premier event from the 2014 edition onwards, with the Wuhan Open in Wuhan, China acting as its replacement. Martina Hingis holds the record for most singles titles with five.
About Osaka:
Osaka is a designated city in the Kansai region of Japan. It is the capital city of Osaka Prefecture and the largest component of the Keihanshin Metropolitan Area, the second largest metropolitan area in Japan and among the largest in the world with over 19 million inhabitants.
Osaka was traditionally considered Japan's economic hub. By the Kofun period (300–538) it had developed into an important regional port, and in the 7th and 8th centuries it served briefly as the imperial capital. Osaka continued to flourish during the Edo period (1603–1867) and became known as a center of Japanese culture. Following the Meiji Restoration, Osaka greatly expanded in size and underwent rapid industrialization. In 1889, Osaka was officially established as a municipality.
Tourism Guide:
SURFACE: Hard
PRIZE MONEY: $823,000
FIELD SIZE: 32
DEFENDING CHAMPION: Karolina Pliskova
Seeds:
1. Naomi Osaka
2. Kiki Bertens
3. Sloane Stephens
4. Angelique Kerber
5. Madison Keys
6. Anastasija Sevastova
7. Donna Vekic
8. Petra Martic

The Tournament:
The tournament was first held in 1976 as the Sillook Open in Tokyo. In 1982 it was renamed the TV Tennis Open and in 1983 it changed yet again to the Queens Grand Prix. Its current name, the Pan Pacific Open, was designated in 1984 and had traditionally been played on indoor carpet. In 2008 the event moved to outdoor hard courts at the Ariake Coliseum. It was classified as a Tier I tournament from 1993 through 2008. Then it was a Premier 5 tournament until it was downgraded to a Premier event from the 2014 edition onwards, with the Wuhan Open in Wuhan, China acting as its replacement. Martina Hingis holds the record for most singles titles with five.

About Osaka:
Osaka is a designated city in the Kansai region of Japan. It is the capital city of Osaka Prefecture and the largest component of the Keihanshin Metropolitan Area, the second largest metropolitan area in Japan and among the largest in the world with over 19 million inhabitants.
Osaka was traditionally considered Japan's economic hub. By the Kofun period (300–538) it had developed into an important regional port, and in the 7th and 8th centuries it served briefly as the imperial capital. Osaka continued to flourish during the Edo period (1603–1867) and became known as a center of Japanese culture. Following the Meiji Restoration, Osaka greatly expanded in size and underwent rapid industrialization. In 1889, Osaka was officially established as a municipality.
Tourism Guide: