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.
Rizin Bantamweight Title [61kg/135lb limit] (as of 2023-07-30)
* Bolded letters in the competitor's name, if any, indicate the surname/family name.
Horiguchi Kyōji
2018-12-31
Saitama
Defeats Bellator champion Darrion Caldwell to become the first Rizin champion; also wins Bellator Title on 19-06-14; vacates both titles on 19-11-28 due to the knee injury suffered in 19-10.
Manel Kape
2019-12-31
Saitama
Defeats Asakura Kai; vacant on 20-03-31 when Kape signs with UFC.
Asakura Kai
2020-08-10
Yokohama
Defeats Ōgikubo Hiromasa.
Horiguchi Kyōji [2]
2020-12-31
Saitama
Vacates on 22-12-31 upon moving down to the flyweight class.
