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Keio Challenger

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Keio Challenger
Current event 2023 Keio Challenger
Tournament information
Event nameKeio Challenger
LocationYokohama, Japan
VenueMamushidani Tennis Courts, Keio University
SurfaceHard
WebsiteWebsite
ATP Tour
CategoryATP Challenger Tour
Draw32S/32Q/16D
Prize money$50,000+H
WTA Tour
CategoryITF Women's Circuit
Draw32S/32Q/16D
Prize money$25,000

The Keio Challenger is a professional tennis tournament played on hardcourts. It is currently part of the ATP Challenger Tour and the ITF Women's Circuit. Having been held in Yokohama, Japan since 1999, the women's edition of the event was introduced in 2017.

Past finals

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Men's singles

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Year Champion Runner-up Score
2023 Japan Yosuke Watanuki Japan Yuta Shimizu 7–6(7–5), 6–4
2022 Australia Christopher O'Connell Japan Yosuke Watanuki 6–1, 6–7(5–7), 6–3
2020–21 Not held
2019 South Korea Kwon Soon-woo Germany Oscar Otte 7–6(7–4), 6–3
2018 Japan Yasutaka Uchiyama Japan Tatsuma Ito 2–6, 6–3, 6–4
2017 Japan Yūichi Sugita South Korea Kwon Soon-woo 6–4, 2–6, 7–6(7–2)
2016 Not held
2015 Japan Taro Daniel Japan Go Soeda 4–6, 6–3, 6–3
2014 Australia John Millman United Kingdom Kyle Edmund 6–4, 6–4
2013 Australia Matthew Ebden Japan Go Soeda 2–6, 7–6(7–3), 6–3
2012 Italy Matteo Viola Bosnia and Herzegovina Mirza Bašić 7–6(7–3), 6–3
2010–11 Not held
2009 Japan Takao Suzuki Austria Martin Fischer 6–4, 7–6(7−5)
2008 South Korea Lee Hyung-taik Japan Go Soeda 7–5, 6–3
2007 Israel Dudi Sela Japan Takao Suzuki 6–7(5−7), 6–4, 6–2
2003–06 Not held
2002 South Korea Lee Hyung-taik Netherlands John van Lottum 2–6, 7–6(7−2), 7–6(8−6)
2001 Japan Takao Suzuki Japan Gouichi Motomura 6–2, 6–7(5−7), 7–6(7−4)
2000 Philippines Eric Taino Austria Julian Knowle 7–6(7−5), 6–4
1999 South Korea Lee Hyung-taik Thailand Paradorn Srichaphan 6–3, 6–0

Men's doubles

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Year Champions Runners-up Score
2023 Sweden Filip Bergevi
Netherlands Mick Veldheer
Chinese Taipei Ray Ho
Australia Calum Puttergill
2–6, 7–5, [11–9]
2022 Romania Victor Vlad Cornea
Philippines Ruben Gonzales
Japan Tomoya Fujiwara
Japan Masamichi Imamura
7–5, 6–3
2020–21 Not held
2019 Tunisia Moez Echargui
Tunisia Skander Mansouri
Australia Max Purcell
Australia Luke Saville
7–6(8–6), 6–7(3–7), [10–7]
2018 Germany Tobias Kamke
Germany Tim Pütz
Thailand Sanchai Ratiwatana
Thailand Sonchat Ratiwatana
3–6, 7–5, [12–10]
2017 Croatia Marin Draganja
Croatia Tomislav Draganja
Belgium Joris De Loore
Australia Luke Saville
4–6, 6–3, [10–4]
2016 Not held
2015 Thailand Sanchai Ratiwatana
Thailand Sonchat Ratiwatana
Italy Riccardo Ghedin
Chinese Taipei Yi Chu-huan
6–4, 6–4
2014 United States Bradley Klahn
Australia Matt Reid
New Zealand Marcus Daniell
New Zealand Artem Sitak
4–6, 6–4, [10–7]
2013 United States Bradley Klahn
New Zealand Michael Venus
Thailand Sanchai Ratiwatana
Thailand Sonchat Ratiwatana
7–5, 6–1
2012 India Prakash Amritraj
Austria Philipp Oswald
Thailand Sanchai Ratiwatana
Thailand Sonchat Ratiwatana
6–3, 6–4
2010–11 Not Held
2009 Chinese Taipei Yang Tsung-hua
Chinese Taipei Yi Chu-huan
Kazakhstan Alexey Kedryuk
Japan Junn Mitsuhashi
6–7(9−11), 6–3, [12–10]
2008 Czech Republic Tomáš Cakl
Slovakia Marek Semjan
United States Brendan Evans
Austria Martin Slanar
6–3, 7–6(7−1)
2007 Japan Hiroki Kondo
Japan Go Soeda
Japan Satoshi Iwabuchi
Japan Toshihide Matsui
6–7(5−7), 6–3, [11–9]
2003–06 Not held
2002 Chinese Taipei Lu Yen-hsun
Thailand Danai Udomchoke
Croatia Ivo Karlović
Australia Mark Nielsen
7–6(7−5), 6–3
2001 Japan Takao Suzuki
Japan Mitsuru Takada
Switzerland Marco Chiudinelli
Germany Sebastian Jäger
6–3, 6–4
2000 Switzerland Yves Allegro
Austria Julian Knowle
Australia Tim Crichton
Australia Ashley Fisher
6–3, 7–6(7−2)
1999 Japan Satoshi Iwabuchi
Japan Thomas Shimada
United States Michael Joyce
United Kingdom Kyle Spencer
6–2, 6–4

Women's singles

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Year Champion Runner-up Score
2022 South Korea Han Na-lae Japan Miyu Kato 7–5, 6–0
2021 Not held
2020 Japan Yuriko Miyazaki Japan Mai Hontama 7–5, 5–7, 6–2
2019 Belgium Greet Minnen Romania Elena-Gabriela Ruse 6–4, 6–1
2018 Russia Veronika Kudermetova United Kingdom Harriet Dart 6–2, 6–4
2017 Japan Akiko Omae Japan Mayo Hibi 7–5, 6–2

Women's doubles

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Year Champions Runners-up Score
2022 Japan Saki Imamura
Japan Naho Sato
South Korea Han Na-lae
Japan Mai Hontama
6–4, 4–6, [10–5]
2021 Not held
2020 Japan Robu Kajitani
Japan Naho Sato
Japan Erina Hayashi
Japan Kanako Morisaki
1–6, 6–4, [10–8]
2019 South Korea Choi Ji-hee
South Korea Han Na-lae
India Rutuja Bhosale
Japan Akiko Omae
6–1, 7–5
2018 United Kingdom Laura Robson
Hungary Fanny Stollár
Japan Momoko Kobori
Japan Chihiro Muramatsu
5–7, 6–2, [10–4]
2017 Japan Ayaka Okuno
Japan Erika Sema
Japan Kanako Morisaki
Japan Minori Yonehara
6–4, 6–4
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