Following the name of the champion(s): Indicates the number of times the competitor has held that title at that point.
[...]
Indicates a gap in the listing where title changes are not known.
<
Title was held or changed hands no later than this. In these cases, it is known that a competitor held the title at a certain time but not when he/she won it.
@
Order uncertain. Different titleholders may be known for the same year, for example, but it is not known who held the title before whom.
#
Unofficial or disputable claims. These are usually matches that certainly took place, but where there is doubt that the competitor shown should be recognized as a true title holder. These listings are also italicized.
Martial Arts Japan Kickboxing Federation
Japan
Welterweight Title [67kg/147.7lb]
(as of 2021-01-31)
* Bolded letters in the competitor's name indicate the surname/family name.
Sakiyama Tetsuya
1985-01-06
Tōkyō
Defeats Raymond Nukaga to be recognized by the Japan Kickboxing Federation; vacant in 86 when Sakiyama jumps to AJKF where he is recognized as the champion.
Suzuki Hideo
1987-06-28
Tōkyō
Defeats Masakatsu Dan.
[...]
Tony Yamaki
1990-07-13
[...]
Waseda Ōkubo
1992-10-29
[...]
Koshikawa Yutaka
1993?
[...]
Hoshino Hiroyuki
1994-01-22
Vacant in 94.
Hosokawa Hideo
1995-01-29
Defeats Watanabe Yūta.
Terada Hiromi
1995-05-06
[...]
Hammer Matsui
1996<
Itō Takashi
1996-12-01
Tōkyō
Date Kōki
1997-07-26
Tōkyō
Vacant in 97.
Itō Takashi [2]
1997-09-23
Tōkyō
Defeats Takashi Idemoto; vacates in 98(?).
Gotō Ryūji
1999-01-31
Tōkyō
Defeats Shimamura Tetsumasa; vacates in 2000.
Satō Ken-ichi
2001-01-27
Tōkyō
Defeats Uehara Daisuke for the vacant title; vacant in 02 or 03.
Ogino Kenji
2003-03-23
Tōkyō
Defeats Iwadate Tomoatsu for the vacant title.
Shirasu Yasuhito
2003-11-24
Tōkyō
Vacates on 07-04-21.
Mizumachi Hiroshi
2007-06-10
Tōkyō
Defeats Atsushi Sasatani; wins WMAF world title on 08-04-29; vacates the Japan title in 08-08.
Sometani Toshiyuki
2009-02-15
Tōkyō
Defeats Akira Sakamoto; vacates in 09.
Kazuki
2009-12-04
Tōkyō
Defeats Akira Sakamoto; vacates in 10 or 11.
Nakazawa Jun
2011-07-24
Toyota, Aichi
Defeats Yukimaru; vacant on 13-04-01 when Nakazawa is recognized as the first champion by the newly formed Japan Kickboxing Innovation.
