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
Super Flyweight Title [50.8kg] (as of 2021-11-28)
* Bolded letters in the competitor's name indicate the surname/family name.
Kato Ryūji
2013-04-01
Has won MAJKF title, defeating Yūji on 13-01-27 in Tōkyō; recognzied as the first INNOVATION champion when 27 gyms leave MAJKF and found the new organization; vacates in 14 to move up to upper weight division.
Yūji (Kamisawa Yūji)
2014-12-13
Tōkyō
Defeats Tatsuya Rose.
Iwanami Yūya
2015-12-12
Tōkyō
Vacates in 17 to move up to the bantamweight division.
