# | Champion(s) | Since | Duration | Location | Note | Details |
21 | Yuya Aoki | 04.05.2023 | 357 days | Yokohama, Kanagawa, Japan | Matches | |
20 | Yuji Okabayashi (4) | 02.01.2022 | 487 days | Tokyo, Japan | Matches | |
19 | Takuya Nomura | 20.09.2021 | 104 days | Sapporo, Hokkaido, Japan | Matches | |
18 | Yasufumi Nakanoue | 02.01.2021 | 261 days | Tokyo, Japan | Matches | |
17 | Yuji Okabayashi (3) | 21.10.2020 | 73 days | Tokyo, Japan | Matches | |
16 | Daichi Hashimoto (2) | 04.11.2019 | 352 days | Tokyo, Japan | Matches | |
15 | Kohei Sato | 25.08.2019 | 71 days | Nagoya, Aichi, Japan | Matches | |
14 | Yuji Okabayashi (2) | 05.05.2019 | 112 days | Yokohama, Kanagawa, Japan | Matches | |
13 | Daisuke Sekimoto (4) | 11.11.2018 | 175 days | Tokyo, Japan | Matches | |
12 | Hideki Suzuki (2) | 15.04.2018 | 210 days | Sapporo, Hokkaido, Japan | Matches | |
11 | Daichi Hashimoto | 17.12.2017 | 119 days | Yokohama, Kanagawa, Japan | Matches | |
10 | Hideki Suzuki | 30.03.2017 | 262 days | Tokyo, Japan | Matches | |
9 | Daisuke Sekimoto (3) | 18.12.2016 | 102 days | Yokohama, Kanagawa, Japan | Matches | |
8 | Hideyoshi Kamitani | 24.07.2016 | 147 days | Tokyo, Japan | Matches | |
7 | Yuji Okabayashi | 20.07.2015 | 370 days | Tokyo, Japan | Matches | |
6 | Daisuke Sekimoto (2) | 31.03.2015 | 111 days | Tokyo, Japan | Matches | |
5 | Shuji Ishikawa | 21.12.2014 | 100 days | Yokohama, Kanagawa, Japan | 5 | Matches |
VACANT | 17.09.2014 | 95 days | 4 | |||
4 | Shinya Ishikawa | 07.02.2014 | 222 days | Tokyo, Japan | 3 | Matches |
VACANT | 18.01.2014 | 20 days | 2 | |||
3 | Daisuke Sekimoto | 01.03.2013 | 323 days | Tokyo, Japan | Matches | |
2 | Manabu Soya | 02.01.2013 | 58 days | Tokyo, Japan | Matches | |
1 | Yoshihito Sasaki | 05.05.2012 | 242 days | Yokohama, Kanagawa, Japan | 1 | Matches |