Kōfu International Open

Kōfu International Open
Tournament information
Event nameKōfu International Open
LocationKōfu, Japan
VenueYamanashi Gakuin Yokone Tennis Center
SurfaceHard
Websitekofuopen.estclub.co.jp
ATP Tour
CategoryITF Men's Circuit
Draw32S / 32Q / 16D
Prize money$15,000
WTA Tour
CategoryITF Women's Circuit
Draw32S / 32Q / 16D
Prize money$40,000

The Kōfu International Open is a tournament for professional female tennis players on outdoor hardcourts. The event is classified as a $40,000 ITF Women's Circuit. It had been held in Kōfu, Japan, since 2003. In 2011, it was a $50k women's event.

Past finals

Women's singles

Year Champion Runner-up Score
2025 Haruka Kaji Himeno Sakatsume 7–6(7–2), 6–3
2024 Catherine Harrison Lee Ya-hsuan 6–7(8–10), 6–1, 6–1
2023 Jang Su-jeong Han Na-lae 2–6, 6–3, 6–2
2020–22
cancelled due to the COVID-19 pandemic
2019 Lee Hua-chen Stephanie Wagner 6–7(4–7), 6–3, 6–4
2018 Luksika Kumkhum Bianca Andreescu 6–3, 6–3
2017 Mayo Hibi Han Na-lae 5–7, 6–3, 6–2
2016 Susanne Celik Zhu Lin 7–6(7–3), 6–3
2015 Miki Miyamura Aiko Yoshitomi 6–4, 6–2
2014 Chiaki Okadaue Mana Ayukawa 3–6, 7–6(9–7), 6–2
2013 Yuuki Tanaka Hiroko Kuwata 6–3, 6–1
2012 Hiroko Kuwata Liu Fangzhou 6–4, 4–6, 7–6(9–7)
2011 Chang Kai-chen Mandy Minella 6–4, 1–6, 6–4
2010 Sachie Ishizu Akiko Yonemura 1–6, 6–1, 6–0
2009 Misaki Doi Erika Sema 7–5, 6–2

Women's doubles

Year Champions Runners-up Score
2025 Momoko Kobori
Ayano Shimizu
Akiko Omae
Eri Shimizu
6–1, 6–4
2024 Erina Hayashi
Saki Imamura
Rutuja Bhosale
Ankita Raina
6–3, 7–5
2023 Han Na-lae
Jang Su-jeong
Georgina García Pérez
Eri Hozumi
6–0, 6–4
2020–22
cancelled due to the COVID-19 pandemic
2019 Chang Kai-chen
Hsu Ching-wen
Emina Bektas
Tara Moore
6–1, 6–3
2018 Gao Xinyu
Luksika Kumkhum
Erina Hayashi
Momoko Kobori
6–0, 2–6, [10–4]
2017 Han Na-lae
Luksika Kumkhum
Erina Hayashi
Robu Kajitani
6–3, 6–0
2016 Shuko Aoyama
Erina Hayashi
Kanae Hisami
Kotomi Takahata
7–5, 7–5
2015 Haruka Kaji
Aiko Yoshitomi
Rika Fujiwara
Akari Inoue
6–2, 6–3
2014 Nagi Hanatani
Hikari Yamamoto
Riko Fujioka
Hayaka Murase
3–6, 6–2, [10–7]
2013 Akari Inoue
Hiroko Kuwata
Han Na-lae
Yang Zi
3–6, 7–5, [10–7]
2012 Ayumi Oka
Kotomi Takahata
Eri Hozumi
Remi Tezuka
6–4, 5–7, [10–3]
2011 Chan Chin-wei
Hsu Wen-hsin
Remi Tezuka
Akiko Yonemura
6–3, 6–4
2010 Maki Arai
Seiko Okamoto
Shiho Hisamatsu
Maiko Inoue
6–4, 6–4
2009 Shuko Aoyama
Akari Inoue
Maki Arai
Miki Miyamura
7–5, 3–6, [10–8]

Men's singles

Year Champion Runner-up Score
2020
cancelled due to the COVID-19 pandemic
2019 Jumpei Yamasaki Sho Shimabukuro 7–6(7–5), 6–3
2018 Hong Seong-chan Makoto Ochi 7–6(7–2), 6–1
2017 Takuto Niki Shane Vinsant 6–4, 4–0 ret.
2016 Lee Duck-hee Yuya Kibi 6–2, 6–3
2015 Lim Yong-kyu Yasutaka Uchiyama 7–6(8–6), 6–3
2014 Takuto Niki Yusuke Watanuki 6–4, 6–2
2013 Chang Yu Nam Hyun-woo 6–2, 6–1
2012 Hiroki Moriya Yasutaka Uchiyama 6–1, 6–4
2011 Not held
2010 Go Soeda Yi Chu-huan 6–3, 6–4
2009 An Jae-sung Yūchi Sugita 5–7, 6–4, 7–6(7–5)
2008 Yaoki Ishii Daniel King-Turner 6–7(2–7), 6–3, 6–4
2007 Kwon Hyung-tae An Jae-sung 7–5, 6–1
2006 Jun Woong-sun Tetsuya Chaen 7–6(7–4), 7–5
2005 Satoshi Iwabuchi Im Kyu-tae 6–2, 7–6(8–6)
2004 Michihisa Onoda Kentaro Masuda 6–3, 7–5
2003 Takahiro Terachi Kentaro Masuda 6–2, 6–2

Men's doubles

Year Champions Runners-up Score
2020
cancelled due to the COVID-19 pandemic
2019 Hiroyasu Ehara
Sho Katayama
Blake Ellis
Michael Look
6–2, 6–4
2018 Hiroyasu Ehara
Sho Katayama
Seol Jae-min
Song Min-kyu
7–5, 7–6(7–5)
2017 Katsuki Nagao
Hiromasa Oku
Yuichi Ito
Jumpei Yamasaki
6–4, 6–7(4–7), [10–3]
2016 Shintaro Imai
Takuto Niki
Yuya Kibi
Toshihide Matsui
6–1, 6–2
2015 Gao Xin
Li Zhe
Takashi Saito
Yusuke Watanuki
6–0, 6–7(4–7), [10–1]
2014 Takuto Niki
Arata Onozawa
Toshihide Matsui
Danai Udomchoke
6–4, 6–2
2013 Hiroki Kondo
Kento Takeuchi
Chang Yu
Kim Cheong-eui
6–1, 3–6, [10–7]
2012 Peng Hsien-yin
Bumpei Sato
Chang Yu
Gao Xin
6–3, 5–7, [10–6]
2011 Not held
2010 Tasuku Iwami
Hiroki Kondo
Mikal Statham
Maciek Sykut
6–2, 6–3
2009 Yang Tsung-hua
Yi Chu-huan
Yuya Kibi
Tomohiro Shinokawa
6–1, 6–0
2008 Gong Maoxin
Li Zhe
G.D. Jones
Daniel King-Turner
6–1, 7–5
2007 Akito Higa
Tomohiro Shinokawa
An Jae-sung
Daniel Yoo
3–6, 6–4, 6–4
2006 Jun Woong-sun
Kim Sun-yong
Minh Le
Hiroyasu Sato
6–2, 7–6(7–4)
2005 Im Kyu-tae
Kwon Oh-hee
Mark Nielsen
Hiroyasu Sato
4–6, 7–6(7–3), 6–3
2004 Scott Lipsky
David Martin
Mark Nielsen
Michihisa Onoda
2–6, 7–5, 7–6(8–6)
2003 Robert Cheyne
Mark Nielsen
Katsushi Fukuda
Michael Ryderstedt
4–6, 6–4, 6–3