No. | Champion | Championship change | Reign statistics | Notes | Ref. |
Date | Event | Location | Reign | Days |
1 | Beast the Barbarian | January 7, 1990 | Battle Resistance - 1st Open Tournament | Tokyo | 1 | 10 | Recognized as first champion. | [1] |
2 | Atsushi Onita | January 17, 1990 | House show | Tokyo | 1 | 406 | The title was renamed WWA World Martial Arts Heavyweight Championship on February 27, 1991. | [1] |
3 | Grigory Verichev | February 27, 1991 | House show | Tokyo | 1 | 91 | | [3] |
4 | Atsushi Onita | May 29, 1991 | House show | Tokyo | 2 | 231 | | [3] |
5 | Big Titan | January 15, 1992 | House show | Kobe, Hyogo | 1 | 15 | | [3][4] |
6 | Tarzan Goto | January 30, 1992 | House show | Tokyo | 1 | 55 | | [3] |
7 | Leon Spinks | March 25, 1992 | House show | Tokyo | 1 | 60 | | [3] |
8 | Atsushi Onita | May 24, 1992 | House show | Tokyo | 3 | 32 | | [3] |
9 | The Sheik | June 25, 1992 | House show | Sapporo, Hokkaido | 1 | [Note 1] | | [3] |
10 | Tiger Jeet Singh | August 1992 | House show | Sapporo, Hokkaido | 1 | [Note 2] | The Sheik rewarded the title to Tiger Jeet Singh for helping him in beating Atsushi Onita for the title. | [3] |
11 | Atsushi Onita | September 19, 1992 | 3rd Anniversary Show | Yokohama, Kanagawa | 4 | 337 | Title replaced by the FMW World Brass Knuckles Heavyweight Championship. | [3] |
12 | Atsushi Onita | August 22, 1993 | Summer Spectacular | Osaka | 5 | 137 | Onita defeated Mr. Pogo to become the first FMW World Brass Knuckles Heavyweight Champion. | [2] |
13 | Mr. Pogo | January 6, 1994 | House show | Tokyo | 1 | 244 | | [2] |
14 | Atsushi Onita | September 7, 1994 | House show | Sapporo, Hokkaido | 6 | 136 | | [2] |
15 | Mr. Pogo | January 21, 1995 | House show | Sendai, Miyagi | 2 | 103 | | [2] |
16 | Atsushi Onita | May 4, 1995 | House show | Sendai, Miyagi | 7 | 1 | | [2] |
— | Vacated | May 5, 1995 | 6th Anniversary Show | Kawasaki, Kanagawa | — | — | Atsushi Onita vacated the title due to his retirement. | [2] |
17 | Hayabusa | June 27, 1995 | House show | Tokyo | 1 | <1 | Hayabusa defeated Hisakatsu Oya for the vacant title. | [2] |
— | Vacated | June 27, 1995 | House show | Tokyo | — | — | Hayabusa vacated the title due to injury. | [2] |
18 | The Gladiator | September 26, 1995 | Grand Slam tour | Tokyo | 1 | 101 | Gladiator defeated Hayabusa in the finals of a Grand Slam Tournament. | [2] |
— | Vacated | January 5, 1996 | House show | Tokyo | — | — | The Gladiator vacated the title due to injury. | [2] |
19 | Super Leather | February 23, 1996 | House show | Tokyo | 1 | 94 | Leather defeated Hisakatsu Oya for the vacant title. | [2] |
20 | The Gladiator | May 27, 1996 | House show | Fukuoka, Fukuoka | 2 | 489 | Gladiator unified the title with the FMW Independent Heavyweight Championship by defeating W*ING Kanemura on December 11, 1996 and the title was renamed to Double Championship. This was the longest reign of the Brass Knuckles Heavyweight Championship. | [2] |
21 | Masato Tanaka | September 28, 1997 | Fall Spectacular | Kawasaki, Kanagawa | 1 | 100 | | [2] |
22 | Mr. Gannosuke | January 6, 1998 | New Year Generation tour | Tokyo | 1 | 114 | | [2] |
23 | Hayabusa | April 30, 1998 | 9th Anniversary Show | Yokohama, Kanagawa | 2 | 204 | | [2] |
24 | Kodo Fuyuki | November 20, 1998 | Scramble Survivor tour | Yokohama, Kanagawa | 1 | 179 | | [2] |
25 | Yukihiro Kanemura | May 18, 1999 | House show | Tokyo | 1 | 97 | Kodo Fuyuki relinquished the title due to injury and awarded it to Kanemura. As a result, the title was split from the Independent Heavyweight Championship, reverted to being Brass Knuckles Heavyweight Championship. | [2] |
26 | Hayabusa | August 23, 1999 | Goodbye Hayabusa II: Hayabusa Graduation Ceremony | Tokyo | 3 | 2 | | [2] |
— | Deactivated | August 25, 1999 | Goodbye Hayabusa II: Last Match | Sapporo, Hokkaido | — | — | The title was retired and replaced with WEW Heavyweight Championship. | [2] |