|The Great Pogo||August 9, 1998||Kanagawa, Japan||-a-|
|Mitsuhiro Matsunaga||August 23, 1998||Osaka, Japan|
|Shadow WX||September 23, 1998||Tokyo, Japan|
|Abdullah the Butcher||January 10, 1999||Fukuoka, Japan|
|Shadow WX ||February 28, 1999||Tokyo, Japan|
|Ryuji Yamakawa||May 30, 1999||Kawasaki, Japan|
|Shadow WX ||August 10, 1999||Osaka, Japan|
|Ryuji Yamakawa ||December 4, 1999||Yokohama, Japan|
|Tomoaki Honma||January 2, 2000||Tokyo, Japan|
|John Zandig||July 2, 2000||Tokyo, Japan|
|Tomoaki Honma ||November 23, 2000||Yokohama, Japan||-b-|
|John Zandig ||May 4, 2001||Sapporo, Japan||-c-|
|Mitsuhiro Matsunaga||August 19, 2001||Yokohama, Japan|
|John Zandig ||December 2, 2001||Yokohama, Japan||-d-|
|Kintaro Kanemura||March 30, 2003||Kanagawa, Japan||-e-|
|Ryuji Ito||August 24, 2003||Kanagawa, Japan|
|Abdullah Kobayashi||December 21, 2005||Kanagawa, Japan|
|Takashi Sasaki||March 31, 2006||Tokyo, Japan|
|Ryuji Ito ||September 10, 2006||Yokohama, Japan||-f-|
|Takashi Sasaki ||December 3, 2006||Yokohama, Japan||-g-|
|Jaki Numazawa||August 26, 2007||Tokyo, Japan|
|Ryuji Ito ||December 14, 2007||Yokohama, Japan|
|Shadow WX ||May 4, 2008||Koshigaya, Japan|
-a- Defeated Mitsuhiro Matsunaga in the finals of a tournament to become the first champion.
-b- Stripped of the title after a number of no-shows.
-c- Defeated Kintaro Kanemura in the finals of a tournament for the vacant title.
-d- Title is vacated in 2002 after Zandig leaves the company, taking the belt with him.
-e- Defeated Shadow WX in the finals of a tournament for the vacant belt.
-f- Vacated on September 14, 2006 after Ito suffers a wrist injury in his title victory.
-g- Defeated Jaki Numazawa for the vacant title.