Keio Challenger

The Yokohama Keio Challenger by Mita Kosan 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 Men's singles YearChampionRunner-upScore 2025 Rei Sakamoto Kaichi Uchida 4–6, 7–6(7–4), 6–4 2024 Yuta Shimizu Li Tu 6–7(4–7), 6–4, 6–2 2023 Yosuke Watanuki Yuta Shimizu 7–6(7–5), 6–4 2022 Christopher O'Connell Yosuke Watanuki 6–1, 6–7(5–7), 6–3 2020–21 Not held 2019 Kwon Soon-woo Oscar Otte 7–6(7–4), 6–3 2018 Yasutaka Uchiyama Tatsuma Ito 2–6, 6–3, 6–4 2017 Yūichi Sugita Kwon Soon-woo 6–4, 2–6, 7–6(7–2) 2016 Not held 2015 Taro Daniel Go Soeda 4–6, 6–3, 6–3 2014 John Millman Kyle Edmund 6–4, 6–4 2013 Matthew Ebden Go Soeda 2–6, 7–6(7–3), 6–3 2012 Matteo Viola Mirza Bašić 7–6(7–3), 6–3 2010–11 Not held 2009 Takao Suzuki Martin Fischer 6–4, 7–6(7−5) 2008 Lee Hyung-taik Go Soeda 7–5, 6–3 2007 Dudi Sela Takao Suzuki 6–7(5−7), 6–4, 6–22003–06 Not held 2002 Lee Hyung-taik John van Lottum 2–6, 7–6(7−2), 7–6(8−6) 2001 Takao Suzuki Gouichi Motomura 6–2, 6–7(5−7), 7–6(7−4) 2000 Eric Taino Julian Knowle 7–6(7−5), 6–4 1999 Lee Hyung-taik Paradorn Srichaphan 6–3, 6–0

Men's doubles YearChampionsRunners-upScore 2025 Neil Oberleitner Michael Vrbenský Masamichi Imamura Ryuki Matsuda 7–6(8–6), 6–1 2024 Benjamin Hassan Saketh Myneni Blake Bayldon Calum Puttergill 6–2, 6–4 2023 Filip Bergevi Mick Veldheer Ray Ho Calum Puttergill 2–6, 7–5, [11–9] 2022 Victor Vlad Cornea Ruben Gonzales Tomoya Fujiwara Masamichi Imamura 7–5, 6–3 2020–21 Not held 2019 Moez Echargui Skander Mansouri Max Purcell Luke Saville 7–6(8–6), 6–7(3–7), [10–7] 2018 Tobias Kamke Tim Pütz Sanchai Ratiwatana Sonchat Ratiwatana 3–6, 7–5, [12–10] 2017 Marin Draganja Tomislav Draganja Joris De Loore Luke Saville 4–6, 6–3, [10–4] 2016 Not held 2015 Sanchai Ratiwatana Sonchat Ratiwatana Riccardo Ghedin Yi Chu-huan 6–4, 6–4 2014 Bradley Klahn Matt Reid Marcus Daniell Artem Sitak 4–6, 6–4, [10–7] 2013 Bradley Klahn Michael Venus Sanchai Ratiwatana Sonchat Ratiwatana 7–5, 6–1 2012 Prakash Amritraj Philipp Oswald Sanchai Ratiwatana Sonchat Ratiwatana 6–3, 6–4 2010–11 Not Held 2009 Yang Tsung-hua Yi Chu-huan Alexey Kedryuk Junn Mitsuhashi 6–7(9−11), 6–3, [12–10] 2008 Tomáš Cakl Marek Semjan Brendan Evans Martin Slanar 6–3, 7–6(7−1) 2007 Hiroki Kondo Go Soeda Satoshi Iwabuchi Toshihide Matsui 6–7(5−7), 6–3, [11–9]2003–06 Not held 2002 Lu Yen-hsun Danai Udomchoke Ivo Karlović Mark Nielsen 7–6(7−5), 6–3 2001 Takao Suzuki Mitsuru Takada Marco Chiudinelli Sebastian Jäger 6–3, 6–4 2000 Yves Allegro Julian Knowle Tim Crichton Ashley Fisher 6–3, 7–6(7−2) 1999 Satoshi Iwabuchi Thomas Shimada Michael Joyce Kyle Spencer 6–2, 6–4

Women's singles YearChampionRunner-upScore 2024 Aliona Falei Hina Inoue 3–6, 6–1, 6–4 2023 Aliona Falei Ayano Shimizu 6–3, 7–5 2022 Han Na-lae Miyu Kato 7–5, 6–0 2021 Not held 2020 Yuriko Miyazaki Mai Hontama 7–5, 5–7, 6–2 2019 Greet Minnen Elena-Gabriela Ruse 6–4, 6–1 2018 Veronika Kudermetova Harriet Dart 6–2, 6–4 2017 Akiko Omae Mayo Hibi 7–5, 6–2

Women's doubles YearChampionsRunners-upScore 2024 Momoko Kobori Ayano Shimizu Cho I-hsuan Cho Yi-tsen 6–4, 7–6(7–2) 2023 Liang En-shuo Tang Qianhui Aoi Ito Natsumi Kawaguchi Walkover 2022 Saki Imamura Naho Sato Han Na-lae Mai Hontama 6–4, 4–6, [10–5] 2021 Not held 2020 Robu Kajitani Naho Sato Erina Hayashi Kanako Morisaki 1–6, 6–4, [10–8] 2019 Choi Ji-hee Han Na-lae Rutuja Bhosale Akiko Omae 6–1, 7–5 2018 Laura Robson Fanny Stollár Momoko Kobori Chihiro Muramatsu 5–7, 6–2, [10–4] 2017 Ayaka Okuno Erika Sema Kanako Morisaki Minori Yonehara 6–4, 6–4

References

External links Yokohama Overview ATP Tour Tennis Old Official website 2019