Following the name of the champion(s): Indicates the number of times the wrestler has held that title at that point.
[...]
Indicates a gap in the listing where title changes are not known.
*
If used next to the names of the wrestlers, they may, in fact, not have held the title in the period indicated. If used next to the dates or places, either they are possibly wrong or the title changes are fictitious.
<
Title was held or changed hands no later than this. In these cases, it is known that a wrestler held the title at a certain time but not when he/she won it.
+
Broadcast date; the actual recording date is unknown.
@
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 wrestler shown should be recognized as a true title holder. These listings are also italicized in HTML files
Vacant on 11-10-04 in Tōkyō when KAORU suffers foot injury during a 3-way match against Aja Kong and Ozaki Mayumi with a stipulation that one has to defeat both of her opponents consecutively; Aja challenges Ozaki for a singles match.
Wins a title in a tag team match with a special stipulation that the members of the winning team face each other for the title; Ozaki teams with Kansai to defeat Aja Kong & Kandori Shinobu and then defeats Kansai.
Nagashima Chikayo
2012-03-25
Tōkyō
Wins in a 30-min ironwoman match.
AKINO
2013-04-24
Tōkyō
Kuragaki Tsubasa
2014-10-13
Tōkyō
AKINO [2]
2015-05-17
Tōkyō
Shirai Mio
2015-06-07
Tōkyō
Wins the title in an afternoon and makes an announcement that she has no intention to defend the title until 15-08-23 in Yokohama but would vacate the title if she loses to any member of Mission K4 (Katō Sonoko, AKINO, Kagetsu, or Kobayashi Kaho) in any match on any card; vacates the title on the same day after losing to Kobayashi during an evening card.
Katō Sonoko
2015-08-23
Yokohama
Defeats Matsumoto Hiroyo after the two become the last remaining wrestlers in a 6-woman elimination tag team match between Kato & AKINO & Kuragaki Tsubasa and Matsumoto & Shida Hikaru & Nakajima Arisa; declared vacant after the match against Matsumoto Hiroyo on 16-04-24 in Tōkyō ends as no contest.
Katō Sonoko [2]
2016-07-18
Tōkyō
Defeats Ozaki Mayumi.
Matsumoto Hiroyo
2016-11-13
Yokohama
Yoshiko
2017-10-29
Yokohama
Shida Hikaru
2018-06-03
Tōkyō
Ozaki Mayumi [2]
2019-04-14
Tōkyō
Katō Sonoko [3]
2021-04-04
Tōkyō
Yoneyama Kaori
2021-06-13
Tōkyō
Yukihi Maya
2021-07-18
Nagoya
Vacates after the match.
Yukihi Maya [2]
2021-08-18
Tōkyō
Teams with Ōka Yumi to defeat Ozaki Mayumi & Anō Saori in an elimination match.
