| Wrestler |
Reign |
Location |
Length of Reign |
Successful Defenses |
Notes |
| Hiro Saito |
1 |
Sumo Hall |
7/31/86 to 11/23/86 |
3 |
Defeated Brad Armstrong in Decision Match |
| Kuniaki Kobayashi |
1 |
Korakuen Hall |
11/23/86 to 1/3/87 |
1 |
|
| Masanobu Fuchi |
1 |
Korakuen Hall |
1/3/87 to 1/20/89 |
7 |
|
| Joe Malenko |
1 |
Fukuoka, Japan |
1/20/89 to 1/25/89 |
0 |
|
| Mighty Inoue |
1 |
Osaka, Japan |
1/25/89 to 3/8/89 |
2 |
|
| Masanobu Fuchi |
2 |
Budokan Hall |
3/8/89 to 4/16/89 |
1 |
|
| Shinichi Nakano |
1 |
Korakuen Hall |
4/16/89 to 4/20/89 |
0 |
|
| Mitsuo Momota |
1 |
Osaka, Japan |
4/20/89 to 7/1/89 |
2 |
|
| Joe Malenko |
2 |
Omiya, Japan |
7/1/89 to 10/20/89 |
2 |
|
| Masanobu Fuchi |
3 |
Nagoya, Japan |
10/20/89 to 5/21/93 |
14 |
|
| Dan Kroffat |
1 |
Sapporo, Japan |
5/21/93 to 8/23/93 |
0 |
|
| Masanobu Fuchi |
4 |
Shizuoka, Japan |
8/23/93 to 7/12/94 |
2 |
|
| Dan Kroffat |
2 |
Kagoshima, Japan |
7/12/94 to 9/10/95 |
5 |
|
| Yoshinari Ogawa |
1 |
Budokan Hall |
9/10/95 to 6/30/96 |
4 |
|
| Masanobu Fuchi |
5 |
Korakuen Hall |
6/30/96 to 7/24/96 |
0 |
|
| Tsuyoshi Kikuchi |
1 |
Budokan Hall |
7/24/96 to 1/15/97 |
2 |
|
| Yoshinari Ogawa |
2 |
Korakuen Hall |
1/15/97 to 8/22/97 |
1 |
|
| Maunakea Mossman |
1 |
Korakuen Hall |
8/22/97 to 6/12/98 |
3 |
Forfeited title to join Heavyweight Division |
| Yoshinari Ogawa |
3 |
Niigata, Japan |
7/19/98 to 6/00 |
5 |
Ogawa forfeited title when he left promotion |
| Kendo Kashin |
1 |
Budokan Hall |
4/23/02 to 2/11/04 |
8 |
Kashin forfeited title due to inactivity |
| Kaz Hayashi |
1 |
Budokan Hall |
2/22/04 to 1/10/05 |
6 |
Defeated BLUE-K in decision match |
| TAKA Michinoku |
1 |
Korakuen Hall |
1/10/05 to 10/22/05 |
12 |
|
| Shuji Kondo |
1 |
Korakuen Hall |
10/22/05 to 2/17/07 |
5 |
|
| Katsuhiko Nakajima |
1 |
Sumo Hall |
2/17/07 to 3/1/08 |
3 |
|
| Silver King |
1 |
Sumo Hall |
3/1/08 to 4/29/08 |
0 |
|
| Ryuji Hijikata |
1 |
Nagoya, Japan |
4/29/08 to 9/28/08 |
3 |
|
| Naomichi Marufuji |
1 |
Yokohama, Japan |
9/28/08 to 2/6/09 |
4 |
|
| Kaz Hayashi |
2 |
Korakuen Hall |
2/6/09 to 1/2/11 |
17 |
|
| Minoru |
1 |
Korakuen Hall |
1/2/11 to 6/3/11 |
1 |
Forfeited title due to suspension |
| KAI |
1 |
Sumo Hall |
6/19/11 to 10/23/11 |
2 |
Defeated Kondo in Decision Match |
| Kenny Omega |
1 |
Sumo Hall |
10/23/11 to 5/27/12 |
5 |
|
| KAI |
2 |
Korakuen Hall |
5/27/12 to 8/12/12 |
0 |
|
| Hiroshi Yamato |
1 |
Korakuen Hall |
8/12/12 to 1/2/13 |
5 |
|
| Shuji Kondo |
2 |
Korakuen Hall |
1/2/13 to 2/23/13 |
0 |
|
| Yoshinobu Kanemaru |
1 |
Korakuen Hall |
2/23/13 to 12/15/13 |
7 |
|
| Ultimo Dragon |
1 |
Korakuen Hall |
12/15/13 to present |
1 |
|
|
