It was in 1952 that Yoshio Shirai won the world flyweight crown, becoming the first Japanese world champion. Since then, Japan has produced 83 world champions to date. Japan ranks third worldwide between countries with most boxing world champions.[2]
The most thriving period of Japan's boxing ran from the 1960s to the early 1970s. In the "golden 60s," Fighting Harada won championships in two divisions—flyweight and bantamweight.[3] In the 1970s, Japan had 5 world champions for a short period at the same time. Notable achievements in that period were Kuniaki Shibata's attainment of 3 world championships in two divisions,[4] Guts Ishimatsu captured the WBC lightweight championship becoming the first Japanese champion in the lightweight division.[5] Koichi Wajima, one of the most popular boxers in Japan for his peculiar "Frog Jump" uppercut punch, also left a big footstep in Japan's boxing history by winning junior middleweight championship 3 times including 6 consecutive title defenses.[6]
Number | Name | Titles | Date | Opponent | Result | Defenses | Reference | 1 | {{flagicon|Japan}} Yoshio Shirai[HoF][U][L] | World Flyweight | May 19, 1952 | {{flagicon|Hawaii}} Dado Marino | UD 15/15 | 4 | Shirai|I|}} |
2 | {{flagicon|Japan}} Fighting Harada[HoF][U][L] | World Flyweight WBA · WBC Bantamweight | October 10, 1962 May 18, 1965 | {{flagicon|THA}} Pone Kingpetch {{flagicon|Brazil}} Éder Jofre | KO 11/15 SD 15/15 | 0 4 | Harada|II|}} |
3 | {{flagicon|Japan}} Hiroyuki Ebihara[U][L] | WBA · WBC Flyweight WBA Flyweight | September 18, 1963 March 30, 1969 | {{flagicon|THA}} Pone Kingpetch {{flagicon|Brazil}} Jose Severino | KO 1/15 UD 15/15 | 0 0 | Ebihara|III|}} |
4 | {{flagicon|Japan}} Takeshi Fuji | WBA · WBC Super Lightweight | April 30, 1967 | {{flagicon|Italy}} Sandro Lopopolo | KO 2/15 | 4 | Fuji|IV|}} |
5 | {{flagicon|Japan}} Yoshiaki Numata[L] | WBA · WBC Super Featherweight WBC Super Featherweight | June 15, 1967 April 5, 1970 | {{flagicon|PHI}} Gabriel Elorde {{flagicon|PHI}} Rene Barrientos | MD 15/15 SD 15/15 | 0 3 | Numata|V|}} |
6 | {{flagicon|Japan}} Hiroshi Kobayashi[L] | WBA · WBC Super Featherweight | December 14, 1967 | {{flagicon|Japan}} Yoshiaki Numata | KO 12/15 | 6 | Kobayashi|VI|}} |
7 | {{flagicon|Japan}} Shozo Saijo | WBA Featherweight | September 27, 1968 | {{flagicon|USA}} Raul Rojas | UD 15/15 | 5 | Saijo|VII|}} |
8 | {{flagicon|Japan}} Masao Ohba | WBA Flyweight | October 22, 1970 | {{flagicon|THA}} Berkrerk Chartvanchai | TKO 13/15 | 5 | Ohba|VIII|}} |
9 | {{flagicon|Japan}} Kuniaki Shibata[L] | WBC Featherweight WBA Super Featherweight WBC Super Featherweight | December 11, 1970 March 12, 1973 February 28, 1974 | {{flagicon|MEX}} Vincente Saldivar {{flagicon|PHI}} Ben Villaflor {{flagicon|MEX}} Ricardo Arredondo | RTD 12/15 UD 15/15 UD 15/15 | | 1
>3Shibata|IX|}} |
10 | {{flagicon|Japan}} Koichi Wajima[L] | WBA · WBC Super Welterweight WBA · WBC Super Welterweight WBA Super Welterweight | October 31, 1971 January 21, 1975 February 17, 1976 | {{flagicon|Italy}} Carmelo Bossi {{flagicon|USA}} Oscar Albarado {{flagicon|South Korea}} Jae-Doo Yuh | SD 15/15 UD 15/15 KO 15/15 | 6 0 0 | Wajima|X|}} |
11 | {{flagicon|Japan}} Guts Ishimatsu | WBC Lightweight | April 11, 1974 | {{flagicon|MEX}} Rodolfo Gato González | TKO 8/15 | 4 | Ishimatsu|XI|}} |
12 | {{flagicon|Japan}} Shoji Oguma[L] | WBC Flyweight WBC Flyweight | October 1, 1974 May 18, 1980 | {{flagicon|MEX}} Betulio González {{flagicon|KOR}} Chan-Hee Park | SD 15/15 KO 9/15 | 0 3 | Oguma|XII|}} |
13 | {{flagicon|Japan}} Susumu Hanagata | WBA Flyweight | October 18, 1974 | {{flagicon|Thailand}} Chartchai Chionoi | TKO 6/15 | 0 | Hanagata|XIII|}} |
14 | {{flagicon|Japan}} Royal Kobayashi[L] | WBC Super Bantamweight | October 9, 1976 | {{flagicon|Panama}} Rigoberto Riasco | TKO 8/15 | 0 | Kobayashi|XIV|}} |
15 | {{flagicon|Japan}} Yoko Gushiken[HoF] | WBA Light Flyweight | October 10, 1976 | {{flagicon|Dominican Republic}} Juan Antonio Guzmán | KO 7/15 | 13 | Gushiken|XV|}} |
16 | {{flagicon|Japan}} Masashi Kudo[L] | WBA Super Welterweight | August 9, 1978 | {{flagicon|NIC}} Eddie Gazo | SD 15/15 | 3 | Kudo|XVI|}} |
17 | {{flagicon|Japan}} Shigeo Nakajima | WBC Light Flyweight | January 3, 1980 | {{flagicon|KOR}} Kim Sung-Jun | UD 15/15 | 0 | Nakajima|XVII|}} |
18 | {{flagicon|Japan}} Yasutsune Uehara[L] | WBA Super Featherweight | August 2, 1980 | {{flagicon|Puerto Rico}} Samuel Serrano | KO 6/15 | 1 | Ueha|XVIII|}} |
19 | {{flagicon|Japan}} Tadashi Mihara | WBA Super Welterweight | November 7, 1981 | {{flagicon|USA}} Rocky Fratto | MD 15/15 | 0 | Mihara|XIX|}} |
20 | {{flagicon|Japan}} Katsuo Tokashiki | WBA Light Flyweight | December 16, 1981 | {{flagicon|KOR}} Hwan Jin Kim | UD 15/15 | 5 | Tokashiki|XX|}} |
21 | {{flagicon|Japan}} Jiro Watanabe[L] | WBA Super Flyweight WBC Super Flyweight | April 8, 1982 July 5, 1984 | {{flagicon|Panama}} Rafael Pedroza {{flagicon|THA}} Payao Poontarat | UD 15/15 UD 12/12 | 6 4 | Watanabe|XXI|}} |
22 | {{flagicon|Japan}} Tadashi Tomori | WBC Light Flyweight | April 13, 1982 | {{flagicon|MEX}} Amado Ursúa | UD 12/12 | 0 | Tomori|XXII|}} |
23 | {{flagicon|Japan}} Kōji Kobayashi[L] | WBC Flyweight | January 18, 1984 | {{flagicon|PHI}} Frank Cedeno | TKO 2/12 | 0 | Kobayashi|XXIII|}} |
24 | {{flagicon|Japan}} Satoshi Shingaki | IBF Bantamweight | April 15, 1984 | {{flagicon|PHI}} Elmer Magallano | TKO 8/12 | 1 | Shingaki|XXIV|}} |
25 | {{flagicon|Japan}} Tsuyoshi Hamada | WBC Super Lightweight | March 29, 1987 | {{flagicon|MEX}} René Arredondo | KO 1/12 | 0 | Hamada|XXV|}} |
26 | {{flagicon|Japan}} Takuya Muguruma | WBA Bantamweight | March 29, 1987 | {{flagicon|Panama}} Azael Moran | KO 5/12 | 0 | Muguruma|XXVI|}} |
27 | {{flagicon|Japan}} Hiroki Ioka | WBC Minimumweight WBA Light Flyweight | October 18, 1987 December 17, 1991 | {{flagicon|THA}} Mai Thomburifarm {{flagicon|KOR}} Yuh Myung-Woo | UD 12/12 SD 12/12 | 2 2 | Ioka|XXVII|}} |
28 | {{flagicon|Japan}} Hideyuki Ohashi[L] | WBC Minimumweight WBA Minimumweight | February 7, 1990 October 14, 1992 | {{flagicon|KOR}} Jum-Hwan Choi {{flagicon|KOR}} Hi-Yong Choi | TKO 5/12 UD 12/12 | 1 0 | Ohashi|XXVIII|}} |
29 | {{flagicon|Japan}} Leopard Tamakuma | WBA Flyweight | May 19, 1952 | {{flagicon|Panama}} Yul-Woo Lee | TKO 10/12 | 4 | Tamakuma|XXIX|}} |
30 | {{flagicon|Japan}} Kiyoshi Hatanaka | WBC Super Bantamweight | February 3, 1991 | {{flagicon|ARG}} Pedro Rubén Décima | TKO 8/12 | 4 | Hatanaka|XXX|}} |
31 | {{flagicon|Japan}} Joichiro Tatsuyoshi | WBC Bantamweight WBC Bantamweight | September 19, 1991 November 22, 1997 | {{flagicon|USA}} Greg Richardson {{flagicon|THA}} Sirimongkol Singwancha | RTD 10/12 TKO 7/12 | 0 0 | Tatsuyoshi|XXXI|}} |
32 | {{flagicon|Japan}} Katsuya Onizuka | WBA Super Flyweight | April 10, 1992 | {{flagicon|THA}} Khaosai Galaxy | UD 12/12 | 5 | Onizuka|XXXII|}} |
33 | {{flagicon|Japan}} Akinobu Hiranaka | WBC Flyweight | April 10, 1992 | {{flagicon|PRI}} Edwin Rosario | KO 1/12 | 0 | Hiranaka|XXXIII|}} |
34 | {{flagicon|Japan}} Yasuei Yakushiji | WBC Bantamweight | December 23, 1993 | {{flagicon|KOR}} Jung-Il Byun | SD 12/12 | 4 | Yakushiji|XXXVI|}} |
35 | {{flagicon|Japan}} Hiroshi Kawashima[L] | WBC Super Flyweight | May 4, 1994 | {{flagicon|MEX}} Jose Luis Bueno | UD 12/12 | 4 | Kawashima|XXXVII|}} |
36 | {{flagicon|Japan}} Shinji Takehara | WBA Middleweight | December 19, 1995 | {{flagicon|ARG}} Jorge Castro | UD 12/12 | 6 | Takehara|XXXVIII|}} |
37 | {{flagicon|Japan}} Keiji Yamaguchi | WBA Light Flyweight | May 21, 1996 | {{flagicon|Panama}} Carlos Murillo | SD 12/12 | 1 | Yamaguchi|XXXIX|}} |
38 | {{flagicon|Japan}} Satoshi Iida | WBA Super Flyweight | 23 December 1997 | {{flagicon|THA}} Yokthai Sithoar | UD 12/12 | 2 | Iida|XL|}} |
39 | {{flagicon|Japan}} Takanori Hatakeyama | WBA Super Featherweight WBA Lightweight | September 5, 1998 June 11, 2000 | {{flagicon|KOR}} Yong-Soo Choi {{flagicon|VEN}} Gilberto Serrano | UD 12/12 KO 8/12 | 1 2 | Hatakeyama|XLI|}} |
40 | {{flagicon|Japan}} Hideki Todaka | WBA Super Flyweight | March 18, 1999 | {{flagicon|VEN}} Jesus Kiki Rojas | UD 12/12 | 2 | Todaka|XLII|}} |
41 | {{flagicon|Japan}} Keitaro Hoshino | WBA Minimumweight WBA Minimumweight | December 6, 2000 January 29, 2002 | {{flagicon|PHI}} Joma Gamboa {{flagicon|PHI}} Joma Gamboa | UD 12/12 UD 12/12 | 0 0 | Hoshino|XLIV|}} |
42 | {{flagicon|Japan}} Celes Kobayashi | WBA Super Flyweight | March 11, 2001 | {{flagicon|VEN}} Leo Gamez | TKO 10/12 | 1 | Kobayashi|XLV|}} |
43 | {{flagicon|Japan}} Yutaka Niida | WBA Minimumweight WBA Minimumweight | August 25, 2001 July 3, 2004 | {{flagicon|THA}} Chana Porpaoin {{flagicon|VEN}} Noel Arambulet | UD 12/12 UD 12/12 | 0 7 | Niida|XLVI|}} |
44 | {{flagicon|Japan}} Osamu Sato | WBA Super Bantamweight | May 18, 2002 | {{flagicon|PRI}} Yoddamrong Sithyodthong | KO 7/12 | 0 | Sato|XLVII|}} |
45 | {{flagicon|Japan}} Katsushige Kawashima[L] | WBC Super Flyweight | June 28, 2004 | {{flagicon|North Korea}} Masamori Tokuyama | KO 1/12 | 2 | Kawashima|XLIX|}} |
46 | {{flagicon|Japan}} Katsunari Takayama | WBC Minimumweight IBF Minimumweight IBF Minimumweight WBO Minimumweight WBO Minimumweight | April 4, 2005 March 30, 2013 December 31, 2014 December 31, 2014 August 20, 2016 | {{flagicon|MEX}} Isaac Bustos {{flagicon|MEX}} Mario Rodríguez {{flagicon|Japan}} Go Odaira {{flagicon|Japan}} Go Odaira {{flagicon|Japan}} Riku Kano | UD 12/12 UD 12/12 TKO 7/12 TKO 7/12 TD 6/12 | 0 2 2 0 0 | Takayama|L|}} |
47 | {{flagicon|Japan}} Hozumi Hasegawa | WBC Bantamweight WBC Featherweight WBC Super Bantamweight | April 16, 2005 November 26, 2010 September 16, 2016 | {{flagicon|THA}} Veeraphol Sahaprom {{flagicon|MEX}} Juan Carlos Burgos {{flagicon|MEX}} Hugo Ruiz | UD 12/12 UD 12/12 RTD 9/12 | 10 0 0 | Hasegawa|LI|}} |
48 | {{flagicon|Japan}} Takashi Koshimoto | WBC Featherweight | January 29, 2006 | {{flagicon|KOR}} In-Jin Chi | UD 12/12 | 4 | Koshimoto|LII|}} |
49 | {{flagicon|Japan}} Nobuo Nashiro | WBA Super Flyweight WBA Super Flyweight | July 22, 2006 September 15, 2008 | {{flagicon|MEX}} Martín Castillo {{flagicon|Japan}} Kohei Kono | TKO 10/12 SD 12/12 | 1 2 | Nashiro|LIII|}} |
50 | {{flagicon|Japan}} Koki Kameda[L] | WBA Light Flyweight WBC Flyweight WBA Bantamweight | August 2, 2006 November 29, 2009 December 26, 2010 | {{flagicon|VEN}} Juan Jose Landaeta {{flagicon|Japan}} Daisuke Naito {{flagicon|VEN}} Alexander Muñoz | SD 12/12 UD 12/12 UD 12/12 | 1 0 8 | Kameda|LIV|}} |
51 | {{flagicon|Japan}} Takefumi Sakata | WBA Flyweight | March 19, 2007 | {{flagicon|VEN}} Lorenzo Parra | TKO 3/12 | 4 | Sakata|LV|}} |
52 | {{flagicon|Japan}} Daisuke Naito[L] | WBC Flyweight | July 18, 2007 | {{flagicon|THA}} Pongsaklek Wonjongkam | UD 12/12 | 5 | Naito|LVI|}} |
53 | {{flagicon|Japan}} Yusuke Kobori | WBA Lightweight | May 19, 2008 | {{flagicon|NIC}} José Alfaro | KO 3/12 | 0 | Kobori|LVII|}} |
54 | {{flagicon|Japan}} Toshiaki Nishioka | WBC Super Bantamweight | December 20, 2008 | {{flagicon|MEX}} Genaro García | TKO 12/12 | 7 | Nishioka|LVIII|}} |
55 | {{flagicon|Japan}} Takahiro Ao | WBC Featherweight WBC Super Featherweight | March 12, 2009 November 26, 2010 | {{flagicon|MEX}} Óscar Larios {{flagicon|Germany}} Vitali Tajbert | UD 12/12 UD 12/12 | 0 3 | Ao|LIX|}} |
56 | {{flagicon|Japan}} Takashi Uchiyama | WBA Super Featherweight WBA Super Featherweight | January 11, 2010 February 21, 2015 | {{flagicon|MEX}} Juan Carlos Salgado {{flagicon|THA}} Jomthong Chuwattana | TKO 12/12 KO 2/12 | 9 2 | Uchiyama|LX|}} |
57 | {{flagicon|Japan}} Daiki Kameda | WBA Flyweight IBF Super Flyweight | February 7, 2010 September 3, 2013 | {{flagicon|THA}} Denkaosan Kaovichit {{flagicon|MEX}} Rodrigo Guerrero | UD 12/12 UD 12/12 | 3 | Kameda|LXI|}} |
58 | {{flagicon|Japan}} Akifumi Shimoda | WBA Super Bantamweight | January 31, 2011 | {{flagicon|North Korea}} Ryol Li Lee | UD 12/12 | 0 | Shimoda|LXIII|}} |
59 | {{flagicon|Japan}} Kazuto Ioka | WBC Minimumweight WBA Minimumweight WBA Light Flyweight WBA Flyweight | February 11, 2011 June 20, 2012 December 31, 2012 April 22, 2015 | {{flagicon|THA}} Oleydong Sithsamerchai {{flagicon|Japan}} Akira Yaegashi {{flagicon|MEX}} José Alfredo Rodríguez {{flagicon|ARG}} Juan Carlos Reveco | TKO 5/12 UD 12/12 TKO 6/12 MD 12/12 | 3 0 3 4 | Ioka|XVIII|}} |
60 | {{flagicon|Japan}} Tomonobu Shimizu | WBA Super Flyweight | August 31, 2011 | {{flagicon|MEX}} Hugo Cázares | SD 12/12 | 0 | Shimizu|LXV|}} |
61 | {{flagicon|Japan}} Akira Yaegashi[L] | WBA Minimumweight WBC Flyweight IBF Light Flyweight | October 24, 2011 April 8, 2013 December 29, 2015 | {{flagicon|THA}} Pornsawan Porpramook {{flagicon|Japan}} Toshiyuki Igarashi {{flagicon|MEX}} Javier Mendoza | TKO 10/12 UD 12/12 UD 12/12 | 0 3 2 | Yaegashi|LXVI|}} |
62 | {{flagicon|Japan}} Shinsuke Yamanaka | WBC Bantamweight | November 6, 2011 | {{flagicon|MEX}} Christian Esquivel | TKO 11/12 | 11 | Yamanaka|LXVII|}} |
63 | {{flagicon|Japan}} Yota Sato | WBC Super Flyweight | March 27, 2012 | {{flagicon|THA}} Suriyan Sor Rungvisai | UD 12/12 | 2 | Sato|LXVIII|}} |
64 | {{flagicon|Japan}} Toshiyuki Igarashi[L] | WBC Flyweight | July 16, 2012 | {{flagicon|PHI}} Sonny Boy Jaro | SD 12/12 | 1 | Igarashi|LXIX|}} |
65 | {{flagicon|Japan}} Kohei Kono | WBA Super Flyweight WBA Super Flyweight | December 31, 2012 March 26, 2014 | {{flagicon|THA}} Tepparith Singwancha {{flagicon|THA}} Denkaosan Kaovichit | KO 4/12 KO 8/12 | 0 3 | Kono|LXX|}} |
66 | {{flagicon|Japan}} Ryo Miyazaki | WBA Minimumweight | December 31, 2012 | {{flagicon|THA}} Pornsawan Porpramook | SD 12/12 | 2 | Miyazaki|LXXI|}} |
67 | {{flagicon|Japan}} Takashi Miura | WBC Super Featherweight | April 8, 2013 | {{flagicon|MEX}} Gamaliel Díaz | TKO 9/12 | 4 | Miura|LXXII|}} |
68 | {{flagicon|Japan}} Tomoki Kameda | WBO Bantamweight | August 1, 2013 | {{flagicon|Namibia}} Paulus Ambunda | UD 12/12 | 3 | Kameda|LXXIII|}} |
69 | {{flagicon|Japan}} Naoya Inoue[C] | WBC Light Flyweight WBO Super Flyweight | April 6, 2014 December 30, 2014 | {{flagicon|MEX}} Adrián Hernández {{flagicon|ARG}} Omar Narváez | TKO 6/12 KO 2/12 | 0 4 | Inoue|LXXIV|}} |
70 | {{flagicon|Japan}} Ryoichi Taguchi[C] | WBA Light Flyweight | December 31, 2014 | {{flagicon|Peru}} Alberto Rossel | UD 12/12 | 5 | Taguchi|LXXV|}} |
71 | {{flagicon|Japan}} Kosei Tanaka | WBO Minimumweight WBO Light Flyweight | May 30, 2015 December 31, 2016 | {{flagicon|MEX}} Julian Yedras {{flagicon|MEX}} Moisés Fuentes | UD 12/12 TKO 5/12 | 1 0 | Tanaka|LXXVI|}} |
72 | {{flagicon|Japan}} Yu Kimura | WBC Light Flyweight | November 28, 2015 | {{flagicon|MEX}} Pedro Guevara | SD 12/12 | 0 | Kimura|LXXVII|}} |
73 | {{flagicon|Japan}} Yukinori Oguni | IBF Super Bantamweight | December 31, 2016 | {{flagicon|Dominican Republic}} Jonathan Guzmán | UD 12/12 | 0 | Oguni|LXXVIII|}} |
74 | {{flagicon|Japan}} Shun Kubo | WBA (regular) Super Bantamweight | April 9, 2017 | {{flagicon|VEN}} Nehomar Cermeño | RTD 11/12 | 0 | Kubo|LXXIX|}} |
75 | {{flagicon|Japan}} Tatsuya Fukuhara | WBO Minimumweight | February 26, 2017 | {{flagicon|MEX}} Moises Calleros | SD 12/12 | 0 | Fukuhara|LXXX|}} |
76 | {{flagicon|Japan}} Daigo Higa[C] | WBO Flyweight | May 20, 2017 | {{flagicon|MEX}} Juan Hernández | TKO 6/12 | 0 | Higa|LXXXI|}} |
77 | {{flagicon|Japan}} Ken Shiro[C] | WBO Light Flyweight | May 20, 2017 | {{flagicon|MEX}} Ganigan López | MD 12/12 | 0 | Shiro|LXXXII|}} |
78 | {{flagicon|Japan}} Hiroto Kyoguchi[C] | IBF Minimumweight | July 23, 2017 | {{flagicon|MEX}} Jose Argumedo | UD 12/12 | 2 | Kyoguchi|LXXXIII|}} |
79 | {{flagicon|Japan}} Sho Kimura[C] | WBO Flyweight | July 28, 2017 | {{flagicon|China}} Zhou Shiming | KO 11/12 | 0 | Kimura|LXXXIV|}} |
80 | {{flagicon|Japan}} Ryuya Yamanaka[C] | WBO Minimumweight | August 28, 2017 | {{flagicon|JPN}} Tatsuya Fukuhara | UD 12/12 | 0 | Yamanaka|LXXXV|}} |
81 | {{flagicon|Japan}} Ryosuke Iwasa[C] | IBF Super bantamweight | September 13, 2017 | {{flagicon|JPN}} Yukinori Oguni | TKO 6/12 | 0 | Iwasa|LXXXVI|}} |
82 | {{flagicon|Japan}} Ryōta Murata[C] | WBA (regular) Middleweight | October 22, 2017 | {{flagicon|CMR}} Hassan N'Dam N'Jikam | UD 12/12 | 1 | Murata|LXXXVII|}} |
|
Number | Name | Titles | Date | Opponent | Result | Defenses | 1 | {{flagicon|Japan}} Nanako Kikuchi | WBC Women's Minimumweight | November 7, 2005 | {{flagicon|THA}} Nongmai Sor Siriporn | TKO 7/10 | 2 |
2 | {{flagicon|Japan}} Naomi Togashi | WBC Women's Light Flyweight | July 13, 2008 | {{flagicon|KOR}} Jin Kim | UD 10/10 | 5 |
3 | {{flagicon|Japan}} Momo Koseki [C] | WBC Women's Atomweight WBA Women's Atomweight | August 11, 2008 October 22, 2015 | {{flagicon|THA}} Winyu Paradorn Gym {{flagicon|Japan}} Ayaka Miyao | UD 10/10
| 17 0 |
4 | {{flagicon|Japan}} Tenkai Tsunami | WBA Women's Super Flyweight | February 26, 2009 | {{flagicon|China}} Zhang Xi Yan | SD 10/10 | 4 |
5 | {{flagicon|Japan}} Etsuko Tada | WBA Women's Mini Flyweight IBF Women's Mini Flyweight | April 11, 2009 December 11, 2015 | {{flagicon|KOR}} Cho-Rong Son {{flagicon|MEX}} Kareli Lopez | UD 10/10 UD 10/10 | 9 0 |
6 | {{flagicon|Japan}} Naoko Fujioka | WBC Women's Mini Flyweight WBA Women's Super Flyweight WBO Women's Bantamweight | May 8, 2011 November 13, 2013 October 19, 2015 | {{flagicon|MEX}} Anabel Ortiz {{flagicon|Japan}} Tomoko Kawanishi {{flagicon|KOR}} Hee Jung Yuh | UD 10/10 RTD 8/10 UD 10/10 | 2 1 1 |
7 | {{flagicon|Japan}} Mary Ando | WBA Women's Atomweight WBC Women's Mini Flyweight | September 22, 2011 December 14, 2013 | {{flagicon|THA}} Amara Naktaku {{flagicon|MEX}} Jasseth Noriega | UD 10/10 SD 10/10 | 1 1 |
8 | {{flagicon|Japan}} Naoko Yamaguchi | WBA Women's Super Flyweight | July 9, 2012 | {{flagicon|Japan}} Tenkai Tsunami | UD 10/10 | 2 |
9 | {{flagicon|Japan}} Ayaka Miyao | WBA Women's Atomweight | September 16, 2012 | {{flagicon|Japan}} Mari Ando | UD 10/10 | 5 |
10 | {{flagicon|Japan}} Shindo Go | WBC Women's Flyweight | May 19, 2013 | {{flagicon|Hungary}} Renata Szebeledi | UD 10/10 | 2 |
11 | {{flagicon|Japan}} Naoko Shibata | IBF Women's Light Flyweight | November 14, 2013 | {{flagicon|MEX}} Jessica Martinez | UD 10/10 | 6 |
12 | {{flagicon|Japan}} Mako Yamada | WBO Women's Mini Flyweight | February 9, 2014 | {{flagicon|KOR}} Su-Yun Hong | SD 10/10 | 0 |
13 | {{flagicon|Japan}} Nao Ikeyama [C] | WBO Women's Atomweight | May 17, 2014 | {{flagicon|PHI}} Jessebelle Pagaduan | UD 10/10 | 3 |
14 | {{flagicon|Japan}} Yuko Kuroki [C] | WBC Women's Mini Flyweight | May 17, 2014 | {{flagicon|MEX}} Katia Gutierrez | SD 10/10 | 5 |
15 | {{flagicon|Japan}} Kumiko Seeser Ikehara | WBO Women's Mini Flyweight | September 20, 2014 | {{flagicon|PHI}} Gretchen Abaniel | SD 10/10 | 4 |
16 | {{flagicon|Japan}} Yunoka Furukawa [C] | WBA Women's Atomweight | August 13, 2016 | {{flagicon|Japan}} Satomi Nishimura | UD 10/10 | 1 |
17 | {{flagicon|Japan}} Nana Yoshikawa | WBO Women's Flyweight | August 13, 2016 | {{flagicon|KOR}} Eun Hye Lee | MD 10/10 | 0 |
18 | {{flagicon|Japan}} Kayoko Ebata | WBO Women's Mini Flyweight | May 19, 2017 | {{flagicon|Japan}} Erika Hanawa | UD 10/10 | 0 |
1. ^{{Cite web|url=http://jpba.gr.jp/archive/champion_archives.html|title=World champion archives|year=2012|publisher=Japan Pro Boxing Association|language=Japanese|accessdate=March 9, 2013}}
2. ^{{cite web|url=http://boxrec.com/media/index.php/Category:Japanese_World_Champions|title=World Champions By Nationality: Japanese World Champions|publisher=BoxRec}}
3. ^{{cite web|url=http://www.badlefthook.com/2009/12/11/1195657/the-great-masahiko-fighting-harada|title=The Great Masahiko "Fighting" Harada|publisher=Bad Left Hook}}
4. ^{{cite web|url=http://www.boxingnews24.com/2010/11/kuniaki-shibata-he-stopped-saldivar/|title=Kuniaki Shibata: He Stopped Saldivar!|publisher=Boxingnews24}}
5. ^{{cite web|url=http://bleacherreport.com/articles/329681-boxings-rising-in-the-land-of-the-rising-sun-japanese-prizefighters|title=Boxing's Rising In The Land Of The Rising Sun: Japanese Prizefighters|publisher=Bleacherreport}}
6. ^{{cite web|url=http://www.cyberboxingzone.com/boxing/wajima.htm|title=World Champion Koichi Wajima|publisher=Cyber Boxing Zone}}