The 2015 Dunlop Srixon World Challenge was a professional tennis tournament played on indoor carpet courts. It was the eighth edition of the tournament and part of the 2015 ATP Challenger Tour and 2015 ITF Women's Circuit, offering a total of $75,000+H (ITF) and $40,000+H (ATP) in prize money. It took place in Toyota, Japan, on 23–29 November 2015.
The 2016 Dunlop World Challenge was a professional tennis tournament played on indoor hard courts. It was the 9th edition of the tournament and part of the 2016 ATP Challenger Tour and the 2016 ITF Women's Circuit, offering $50,000+H each in prize money for both men and women's events. It took place in Toyota, Japan, on 14–20 November 2016.
The 2017 Kangaroo Cup was a professional tennis tournament played on outdoor hard courts. It was the twenty-second edition of the tournament and part of the 2017 ITF Women's Circuit, offering a total of $80,000 in prize money. It took place in Gifu, Japan, from 1–7 May 2017.
The 2017 Fukuoka International Women's Cup was a professional tennis tournament played on outdoor carpet courts. It was the seventeenth edition of the tournament and part of the 2017 ITF Women's Circuit, offering a total of $60,000 in prize money. It took place in Fukuoka, Japan, from 8–14 May 2017.
The 2017 Japan Women's Open was a women's tennis tournament played on outdoor hard courts. It was the ninth edition of the Japan Women's Open, and part of the WTA International tournaments of the 2017 WTA Tour. It was held at the Ariake Coliseum in Tokyo, Japan, from September 11 through September 17, 2017.
The 2017 Dunlop World Challenge was a professional tennis tournament played on indoor hard courts. It was the 10th edition of the tournament and part of the 2017 ATP Challenger Tour and the 2017 ITF Women's Circuit. It took place in Toyota, Japan, between 13–19 November 2017 and was the last edition of the tournament.
The 2018 Caterpillar Burnie International was a professional tennis tournament played on outdoor hard courts as part of the 2018 ATP Challenger Tour and the 2018 ITF Women's Circuit, offering a total of $75,000 in prize money for men and $60,000 for women. It was the fifteenth and ninth edition of the tournament.
The 2018 Keio Challenger was a professional tennis tournament played on hard courts. It was the thirteenth (ATP) and second (ITF) editions of the tournament and part of the 2018 ATP Challenger Tour and the 2018 ITF Women's Circuit. It took place in Yokohama, Japan between 26 February and 4 March 2018 for the men's edition and between 5 and 11 March 2018 for the women's.
The 2018 Jiangxi International Women's Tennis Open was a professional tennis tournament played on hard courts. It was the 5th edition of the event, and part of the International category of the 2018 WTA Tour. It took place in Nanchang, China, from July 23 – 29, 2018.
The 2019 Oracle Challenger Series – New Haven was a professional tennis tournament played on outdoor hard courts. This tournament was part of the 2019 ATP Challenger Tour and the 2019 WTA 125K series. The first edition took place from September 2 to 8, 2019 at the Cullman-Heyman Tennis Center in New Haven, United States.
The 2019 Toray Pan Pacific Open was a professional women's tennis tournament played on outdoor hard courts. It was the 36th edition of the Pan Pacific Open, and part of the Premier Series of the 2019 WTA Tour. It took place at the ITC Utsubo Tennis Center in Osaka, Japan, on 16–22 September 2019. This was the only time Osaka hosting the tournament after Tokyo was in preparation for the Summer Olympics the following year.
The 2021 Portugal Ladies Open was a professional women's tennis tournament played on outdoor hard courts. It was the second edition of the tournament which was part of the 2021 ITF Women's World Tennis Tour. It took place in Caldas da Rainha, Portugal between 13 and 19 September 2021.
The 2021 ITF Féminin Le Neubourg was a professional women's tennis tournament played on outdoor hard courts. It was the first edition of the tournament which was part of the 2021 ITF Women's World Tennis Tour. It took place in Le Neubourg, France between 27 September and 3 October 2021.
The 2022 President's Cup was a professional tennis tournament played on outdoor hard courts. It was the seventeenth edition of the men's tournament which was part of the 2022 ATP Challenger Tour, and the thirteenth edition of the women's tournament which was part of the 2022 ITF Women's World Tennis Tour. It took place in Nur-Sultan, Kazakhstan between 18 and 24 July 2022.
The 2022 Shimadzu All Japan Indoor Tennis Championships was a professional tennis tournament played on outdoor hard courts. It was the third edition of the tournament which was part of the 2022 ITF Women's World Tennis Tour. It took place in Kyoto, Japan between 19 and 25 December 2022.
The 2023 Takasaki Open is a professional tennis tournament played on outdoor hard courts. It is the first edition of the tournament which was part of the 2023 ITF Women's World Tennis Tour. It took place in Takasaki, Japan between 13 and 19 November 2023.
The 2023 Takasaki Open 2 is a professional tennis tournament played on outdoor hard courts. It is the second edition of the tournament which was part of the 2023 ITF Women's World Tennis Tour. It took place in Takasaki, Japan between 20 and 26 November 2023.
The 2023 BeeTV Women's 60 was a professional tennis tournament played on indoor hard courts. It was the fourth edition of the tournament, which was part of the 2023 ITF Women's World Tennis Tour. It took place in Astana, Kazakhstan, between 6 and 12 March 2023.
The 2024 Kurume U.S.E Cup was a professional tennis tournament play on outdoor carpet courts. It was the seventeenth edition of the tournament, which was part of the 2024 ITF Women's World Tennis Tour. It took place in Kurume, Japan, between 13 and 19 May 2024.
Guo Hanyu and Jiang Xinyu were the defending champions but chose not to participate.
Aoi Ito 
