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
Wins both titles; loses the World title to Kondō Shūji on 05-10-22 in Tōkyō
JOE
2006-01-07
Tōkyō
Mashimo Kengo
2006-10-09
Tōkyō
Hino Yūji
2008-04-13
Tōkyō
Mashimo Kengo [2]
2008-08-09
Chiba
TAKA Michinoku [2]
2009-04-12
Chiba
KAZMA
2009-10-18
Chiba
Hino Yūji [2]
2010-08-15
Chiba
Mashimo Kengo [3]
2011-06-18
Tōkyō
Sekimoto Daisuke
2012-08-22
Tōkyō
Hino Yūji [3]
2012-11-13
Tōkyō
Takizawa Taishi
2013-04-14
Tōkyō
Stripped on 13-07-02 after Takizawa is arrested for secret photography.
Mashimo Kengo [4]
2013-09-01
Chiba
Defeats Sekine Ryūichi in 16-man tournament final.
Inamatsu Saburō
2014-04-13
Tōkyō
MIYAWAKI
2014-06-22
Ōsaka
Wins by the referee stoppage when Inamatsu injures his left shoulder; MIYAWAKI refuses the title and it is declared held up, but the commissioner officially recognizes MIYAWAKI as the champion on 14-06-25.