The All Japan Championship (also: Japan Championship) is an annual international pool tournament founded by Kazuo Fujima in 1967, when there was an all-around completion with multiple disciplines. In the Men's tournament the current discipline is Ten-ball, however for the Women's tournament it is played in the discipline of Nine-ball. The All Japan Championship is currently sanctioned by the JPBA (Japan Professional Pocket Billiard Association). The first 20 years only held men's competitions. It was not until the 21st competition in 1988 that the women's event was established. Most of the competition period is after the middle of November each year. This is the most famous international large-scale pool event held in Japan, and the oldest tournament in pool that is still held. Takeshi Okumura had won the men's tournament the most times, having won thirteen times pre 1991, when the tournament was multiple divisions. Takeshi Okumura, Francisco Bustamante and Ko Pin Yi have won the men's tournament the most times, post 1990 in the single discipline modern format. Akimi Kajitani, Liu Hsin-mei & Pan Xiaoting have won the women's tournament the most times, three.
| Year | Overall | ||||
|---|---|---|---|---|---|
| 1967 | – | – | – | ||
| 1969 | – |  Joe Balsis | |||
| 1970 | – | – | – |  Kazuo Fujima | |
| 1971 | Takashi Namie | ||||
| 1972 | |||||
| 1973 | Mamoru Tanaka | ||||
| 1974 | – | – | – | ||
| 1975 | – | – | – | ||
| 1976 | Jim Rempe | ||||
| 1977 | |||||
| 1978 | |||||
| 1979 | Takeshi Okumura | ||||
| 1980 | |||||
| 1981 | – | ||||
| 1982 | |||||
| 1983 | |||||
| 1984 | |||||
| 1985 | Takashi Toda | ||||
| 1986 | Allen Hopkins | ||||
| 1987 | |||||
| 1988 | Yashukazu Kohagura | ||||
| 1989 | – | – | – | ||
| 1990 | Masaru Hanatani |
| Year | Winner | Runner-up | Discipline |
|---|---|---|---|
| 1991 |  Efren Reyes | Nine-ball | |
| 1992 | Antonio Lining | ||
| 1993 | Akikumo Toshikawa | ||
| 1994 | Chang Hao-Ping | Takeshi Okumura | |
| 1995 | Shuji Nagata | ||
| 1996 | Francisco Bustamante | ||
| 1997 | C.J. Wiley | ||
| 1998 | Takeshi Okumura | ||
| 1999 | Antonio Lining | ||
| 2000 | Chao Fong-pang | ||
| 2001 |  Mika Immonen | ||
| 2002 | Francisco Bustamante | Mika Immonen | |
| 2003 | Tasuku Nishio | ||
| 2004 | Mika Immonen | ||
| 2005 | Mika Immonen | ||
| 2006 | Chang Pei-Wei | ||
| 2007 | Toru Kuribayashi | ||
| 2008 | Ronnie Alcano | ||
| 2009 | Antonio Lining | ||
| 2010 | Ko Ping-chung | ||
| 2011 |  Wu Jiaqing | Ten-ball | |
| 2012 | Yang Ching-shun | ||
| 2013 | |||
| 2014 | Raymund Faraon | ||
| 2015 | Johann Chua | ||
| 2016 | Jeffrey de Luna | ||
| 2017 | Jundel Mazon | ||
| 2018 | Toru Kuribayashi | ||
| 2019 | Dang Jinhu | ||
| 2023 | Hayato Hijikata | ||
| 2024 | Wu Kun-lin | Jundel Mazon |
| Year | Winner | Runner-up | Discipline |
|---|---|---|---|
| 1988 | Mieko Harada | Kazuko Shimizu | Nine-ball |
| 1989 | Zhu Yukuri | Kiyoko Sano | |
| 1990 | LoreeJon Jones | Yoko Miura | |
| 1991 | Zhu Yukuri | ||
| 1992 | Akimi Kajitani | Mieko Harada | |
| 1993 | Jennifer Chen | Yoko Miura | |
| 1994 | Zhu Yukuri | ||
| 1995 | Yoko kamimura | ||
| 1996 | Allison Fisher | Liu Hsin-mei | |
| 1997 | Irene Pippin | ||
| 1998 | Liu Hsin-mei | Makiko Takagi | |
| 1999 | Jennifer Chen | ||
| 2000 | Karen Corr | Allison Fisher | |
| 2001 | Allison Fisher | ||
| 2002 | Pan Xiaoting | Sakiki Namiki | |
| 2003 |  Jung Sung-Hyun | ||
| 2004 | Lin Yuan-chun | ||
| 2005 | Makiko Takagi | ||
| 2006 | Lin Yuan-chun |  Jasmin Ouschan | |
| 2007 | Chang Shu-han | ||
| 2008 | Chou Chieh-yu | ||
| 2009 | Han Yu | Lim Yun-Mi | |
| 2010 | Lin Hsiao-chi | Keiko Yukawa | |
| 2011 | Chen Siming | Junko Mitsuoka | |
| 2012 | Chou Chieh-yu | Chen Ho-yun | |
| 2013 | Chihiro Kawahara | ||
| 2014 | Wu Zhi-Ting | Liu Shasha | |
| 2015 | Kim Ga-young | Chihiro Kawahara | |
| 2016 | Chen Ho-yun | Chihiro Kawahara | |
| 2017 | Miyuki Kuribayashi | ||
| 2018 | Tian Qi Shi | Lim Yun-Mi | |
| 2019 | Chen Siming | ||
| 2023 | Chihiro Kawahara | ||
| 2024 | Seo Seoa | Wang Xiaotong |
In addition to the All Japan Championship another tournament known as the Japan Open played in the discipline of Nine-ball for men and women. However, from 2011 to present, the men's tournament was played in the discipline of Ten-ball. The event began in 1988 and the year after for women and the event has continued for over 30 years. Takeshi Okumura is the most successful player having won the tournament four times. Akimi Kajitani is the most successful player having won the women's tournament the most times, three.[2] [3]
| Year | Winner | Runner-up | Discipline |
|---|---|---|---|
| 1988 | Takeshi Okumura | Hideo Shiraishi | Nine-ball |
| 1989 | Zhang Xiao-yuan | Jose Parica | |
| 1990 |  Ismael Páez | Ernesto Dominguez | |
| 1991 | Syuji Nagata | Akikumo Toshikawa | |
| 1992 | Francisco Bustamante | Tomoki Mekari | |
| 1993 | Akikumo Toshikawa | Masao Tachibana | |
| 1994 | Akikumo Toshikawa | ||
| 1995 | Yoshihiro Kitatani | ||
| 1996 | Syuji Nagata | ||
| 1997 | Akikumo Toshikawa | ||
| 1998 | Hisanao Kataoka | ||
| 1999 | Akikumo Toshikawa | ||
| 2000 | Johnny Archer | ||
| 2001 | Chao Fong-pang | ||
| 2002 | Ralf Souquet | ||
| 2003 | Ramil Gallego | ||
| 2004 | Rodolfo Luat | ||
| 2005 | Rodolfo Luat | ||
| 2006 | Dante Rasalan | ||
| 2007 | Lo Li-Wen | ||
| 2008 | Ryoji Aoki | ||
| 2009 | Ramil Gallego | Lo Li-Wen | |
| 2010 | Efren Reyes | ||
| 2011 | Efren Reyes | Ten-ball | |
| 2012 | Satoshi Kawabata | ||
| 2013 | Hayato Hijikata | ||
| 2014 | Rodney Morris | ||
| 2015 | Toru Kuribayashi | ||
| 2016 | Toru Kuribayashi | ||
| 2017 | Naoyuki Ōi | ||
| 2018 | Lee Van Corteza | Naoyuki Ōi | |
| 2019 | Naoyuki Ōi | Norio Ogawa | |
| 2022 | Kenichi Uchigaki | ||
| 2023 | Dennis Orcollo | ||
| 2024 | Jeffrey Ignacio | Lin Tsung-Han |
| Year | Winner | Runner-up | Discipline |
|---|---|---|---|
| 1989 | Miura Yoko | Iso Masako | Nine-ball |
| 1990 | Shigemi Watanabe | Yukiko Sada | |
| 1991 | Rie Oriuchi | Kiyoko Sano | |
| 1992 | Mieko Harada | Setsuko Kubota | |
| 1993 | Makiko Takagi | Keitko Nishimura | |
| 1994 | Keitko Nishimura | ||
| 1995 | Miura Yoko | Setsuko Kubota | |
| 1996 | Setsuko Kubota | ||
| 1997 | Akimi Kajitani | Makiko Takagi | |
| 1998 | Kyoko Sone | Mika Muneta | |
| 1999 | Akimi Kajitani | Kimiko Yamauchi | |
| 2000 | Kyoko Sone | ||
| 2001 | Kyoko Sone | ||
| 2002 | Keiko Yukawa | Teruko Sekikawa | |
| 2003 | Yukiko Hamanishi | ||
| 2004 | Kao Shi-Pin | Chang Shu-Han | |
| 2005 | Zhou Meng-Meng | Miyuki Kuribayashi | |
| 2006 | Su Yi-Yun | Yukiko Hamanishi | |
| 2007 | Miyuki Kuribayashi | Chihiro Kawahara | |
| 2008 | Akimi Kajitani | ||
| 2009 | Chen Ho-Yun | Keiko Yukawa | |
| 2010 | Chou Chieh-Yu | Jia Li | |
| 2011 | Wei Tzu-Chien | Chihiro Kawahara | |
| 2012 | Akimi Kajitani | Chihiro Kawahara | |
| 2013 | Chihiro Kawahara | Tsai Pei-Chun | |
| 2014 | Wu Zhi-Ting | Jia Li | |
| 2015 | Kyoko Sone | ||
| 2016 | Amber Chen | ||
| 2017 | Fan Yu-Hsuan | Yuki Hiraguchi | |
| 2018 | Kuo Szu-Ting | Akimi Kajitani | |
| 2019 | Amber Chen | Rubilen Amit | |
| 2022 | |||
| 2023 | Keimi Kajitani | ||
| 2024 |