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.
Japan Kickboxing Innovation
Welterweight Title [66.68kg]
(as of 2020-02-01)
* Bolded letters in the competitor's name indicate the surname/family name.
Nakazawa Jun
2013-04-01
Has won the vacant MAJKF title, defeating Yukimaru on 11-07-24 in Toyota, Aichi; recognzied as the first INNOVATION champion when 27 gyms leave MAJKF and found the new organization; vacates in 14.
T-98
2014-12-13
Tōkyō
Defeats Hiroshi Sakurai; vacates in 15-11 to move up to the super welterweight division.
Kadota Tetsuhiro
2017-01-22
Tōkyō
Defeats Miyamae Tatsuya in tournament final; vacant on 18-12-09 upon retirement.