Wrestler Reign Location Length of Reign Successful Defenses Notes
CIMA 1 Kobe, Japan 7/4/04 to 12/16/04 1 Was UDG Champion
Masaaki Mochizuki 1 Tokyo, Japan 12/16/04 to 11/4/05 4  
Magnitude Kishiwada 1 Osaka, Japan 11/4/05 to 2/24/06 2  
Ryo Saito 1 Tokyo, Japan 2/24/06 to 4/23/06 0  
Susumu Yokosuka 1 Tokyo, Japan 4/23/06 to 11/23/06 3  
Don Fujii 1 Osaka, Japan 11/23/06 to 3/25/07 1  
Jushin Thunder Liger 1 Tsu, Japan 3/25/07 to 7/1/07 1  
CIMA 2 Kobe, Japan 7/1/07 to 6/29/08 6 Forfeited title due to injury
Shingo Takagi 1 Kobe, Japan 7/27/08 to 12/28/08 3 Defeated BxB Hulk in Decision Match
Naruki Doi 1 Fukuoka, Japan 12/28/08 to 3/22/10 8  
YAMATO 1 Tokyo, Japan 3/22/10 to 7/11/10 3  
Masato Yoshino 1 Kobe, Japan 7/11/10 to 4/14/11 4  
Masaaki Mochizuki 2 Tokyo, Japan 4/14/11 to present