Throughout the history of the championship, several wrestlers have been forced to relinquish the title due to an inability to participate in title defenses. When a wrestler has been injured or unable to compete for other reasons, tournaments have been held to determine the new champion.[4][5]
| # | Wrestler | Reign | Date | Days held | Location | Event | Notes |
| 01 1 | Inoki, AntonioAntonio Inoki | 01 1 | 01987-06-12 June 12, 1987 | 325 | Tokyo, Japan | Live event | Defeated Masa Saito in a tournament final. |
| 01.5 — | Vacated | 01 1 | 01988-05-02 May 2, 1988 | N/A | N/A | N/A | Vacated due to Inoki fracturing his left foot.[1] |
| 02 2 | Fujinami, TatsumiTatsumi Fujinami | 01 1 | 01988-05-08 May 8, 1988 | 19 | Tokyo, Japan | Live event | Defeated Big Van Vader.[1] |
| 02.5 — | Vacated | 01 1 | 01988-05-27 May 27, 1988 | N/A | Sendai, Japan | N/A | Held up after a title defense against Riki Chōshū ended in a no contest.[1] |
| 03 3 | Fujinami, TatsumiTatsumi Fujinami | 02 2 | 01988-06-24 June 24, 1988 | 285 | Osaka, Japan | Live event | Defeated Riki Chōshū in a rematch.[1] |
| 03.5 — | Vacated | 01 1 | 01989-04-05 April 5, 1989 | N/A | N/A | N/A | Vacated so the title could be decided in a tournament.[1] |
| 04 4 | Vader, Big VanBig Van Vader | 01 1 | 01989-04-24 April 24, 1989 | 31 | Tokyo, Japan | Live event | Defeated Shinya Hashimoto in a tournament final with Lou Thesz as the special referee.[3] |
| 05 5 | Hashimikov, SalmanSalman Hashimikov | 01 1 | 01989-05-25 May 25, 1989 | 48 | Osaka, Japan | Live event | [1] |
| 06 6 | Chōshū, RikiRiki Chōshū | 01 1 | 01989-07-12 July 12, 1989 | 29 | Osaka, Japan | Live event | [8] |
| 07 7 | Vader, Big VanBig Van Vader | 02 2 | 01989-08-10 August 10, 1989 | 374 | Tokyo, Japan | Live event | [8] |
| 08 8 | Chōshū, RikiRiki Chōshū | 02 2 | 01990-08-19 August 19, 1990 | 129 | Tokyo, Japan | Live event | [8] |
| 09 9 | Fujinami, TatsumiTatsumi Fujinami | 03 3 | 01990-12-26 December 26, 1990 | 22 | Hamamatsu, Japan | Live event | [8] |
| 10 10 | Vader, Big VanBig Van Vader | 03 3 | 01991-01-17 January 17, 1991 | 46 | Yokohama, Japan | Live event | [8] |
| 11 11 | Fujinami, TatsumiTatsumi Fujinami | 04 4 | 01991-03-04 March 4, 1991 | 306 | Hiroshima, Japan | Live event | |
| 12 12 | Chōshū, RikiRiki Chōshū | 03 3 | 01992-01-04 January 4, 1992 | 225 | Tokyo, Japan | Starrcade 1992 in Tokyo Dome | This match was also for Chōshū's Greatest 18 Championship.[9] |
| 13 13 | Muta, Great, theThe Great Muta | 01 1 | 01992-08-16 August 16, 1992 | 400 | Fukuoka, Japan | Live event | This was also for Chōshū's Greatest 18 Championship.[9] |
| 14 14 | Hashimoto, ShinyaShinya Hashimoto | 01 1 | 01993-09-20 September 20, 1993 | 196 | Nagoya, Japan | Live event | [9] |
| 15 15 | Fujinami, TatsumiTatsumi Fujinami | 05 5 | 01994-04-04 April 4, 1994 | 27 | Hiroshima, Japan | Battle Line Kyushu tour | |
| 16 16 | Hashimoto, ShinyaShinya Hashimoto | 02 2 | 01994-05-01 May 1, 1994 | 367 | Fukuoka, Japan | Wrestling Dontaku | |
| 17 17 | Mutoh, KeijiKeiji Mutoh (formerly The Great Muta) | 02 2 | 01995-05-03 May 3, 1995 | 246 | Fukuoka, Japan | Wrestling Dontaku | |
| 18 18 | Takada, NobuhikoNobuhiko Takada | 01 1 | 01996-01-04 January 4, 1996 | 116 | Tokyo, Japan | Wrestling World | |
| 19 19 | Hashimoto, ShinyaShinya Hashimoto | 03 3 | 01996-04-29 April 29, 1996 | 489 | Tokyo, Japan | Battle Formation | |
| 20 20 | Sasaki, KensukeKensuke Sasaki | 01 1 | 01997-08-31 August 31, 1997 | 216 | Yokohama, Japan | Final Power Hall in Yokohama | |
| 21 21 | Fujinami, TatsumiTatsumi Fujinami | 06 6 | 01998-04-04 April 4, 1998 | 126 | Tokyo, Japan | Antonio Inoki Retirement Show | |
| 22 22 | Chono, MasahiroMasahiro Chono | 01 1 | 01998-08-08 August 8, 1998 | 44 | Osaka, Japan | Rising the Next Generation in Osaka Dome | |
| 22.5 — | Vacated | 01 1 | 01998-09-21 September 21, 1998 | N/A | N/A | N/A | |
| 23 23 | Norton, ScottScott Norton | 01 1 | 01998-09-23 September 23, 1998 | 103 | Yokohama, Japan | Big Wednesday. | Defeated Yuji Nagata to win the vacant title |
| 24 24 | Mutoh, KeijiKeiji Mutoh | 03 3 | 01999-01-04 January 4, 1999 | 340 | Tokyo, Japan | Wrestling World | |
| 25 25 | Tenryu, GenichiroGenichiro Tenryu | 01 1 | 01999-12-10 December 10, 1999 | 25 | Osaka, Japan | Battle Final tour | [10] |
| 26 26 | Sasaki, KensukeKensuke Sasaki | 02 2 | 02000-01-04 January 4, 2000 | 279 | Tokyo, Japan | Wrestling World | |
| 26.5 — | Vacated | 01 1 | 02000-10-09 October 9, 2000 | N/A | Tokyo, Japan | N/A | Vacated after Sasaki lost a non-title match to Toshiaki Kawada at Do Judge!!.[11] |
| 27 27 | Sasaki, KensukeKensuke Sasaki | 03 3 | 02001-01-04 January 4, 2001 | 72 | Tokyo, Japan | Wrestling World | Defeated Toshiaki Kawada in a tournament final |
| 28 28 | Norton, ScottScott Norton | 02 2 | 02001-03-17 March 17, 2001 | 23 | Nagoya, Japan | Hyper Battle tour | |
| 29 29 | Fujita, KazuyukiKazuyuki Fujita | 01 1 | 02001-04-09 April 9, 2001 | 270 | Osaka, Japan | Strong Style | |
| 29.5 — | Vacated | 01 1 | 02002-01-04 January 4, 2002 | N/A | N/A | N/A | Vacated due to an injured achilles tendon |
| 30 30 | Yasuda, TadaoTadao Yasuda | 01 1 | 02002-02-16 February 16, 2002 | 48 | Tokyo, Japan | Fighting Spirit tour | Defeated Yuji Nagata in a tournament final |
| 31 31 | Nagata, YujiYuji Nagata | 01 1 | 02002-04-05 April 5, 2002 | 392 | Tokyo, Japan | Toukon Special | |
| 32 32 | Takayama, YoshihiroYoshihiro Takayama | 01 1 | 02003-05-02 May 2, 2003 | 185 | Tokyo, Japan | Ultimate Crush | Was also for Takayama's NWF Heavyweight Championship. |
| 33 33 | Tenzan, HiroyoshiHiroyoshi Tenzan | 01 1 | 02003-11-03 November 3, 2003 | 36 | Yokohama, Japan | Yokohama Dead out | |
| 34 34 | Nakamura, ShinsukeShinsuke Nakamura | 01 1 | 02003-12-09 December 9, 2003 | 58 | Osaka, Japan | Battle Final tour | Defeated Yoshihiro Takayama to unify the IWGP Heavyweight Championship with the NWF Heavyweight Championship at Wrestling World 2004. |
| 34.5 — | Vacated | 01 1 | 02004-02-05 February 5, 2004 | N/A | N/A | N/A | Vacated due to various injuries. |
| 35 35 | Tenzan, HiroyoshiHiroyoshi Tenzan | 02 2 | 02004-02-15 February 15, 2004 | 26 | Tokyo, Japan | Fighting Spirit tour | Defeated Genichiro Tenryu in a tournament final |
| 36 36 | Sasaki, KensukeKensuke Sasaki | 04 4 | 02004-03-12 March 12, 2004 | 16 | Tokyo, Japan | Hyper Battle tour | |
| 37 37 | Sapp, BobBob Sapp | 01 1 | 02004-03-28 March 28, 2004 | 66 | Tokyo, Japan | King of Sports | |
| 37.5 — | Vacated | 01 1 | 02004-06-02 June 2, 2004 | N/A | N/A | N/A | Vacated after Sapp lost a K-1 fight to Kazuyuki Fujita.[3] |
| 38 38 | Fujita, KazuyukiKazuyuki Fujita | 02 2 | 02004-06-05 June 5, 2004 | 126 | Osaka, Japan | The Crush II | Defeated Hiroshi Tanahashi to win the vacant title |
| 39 39 | Sasaki, KensukeKensuke Sasaki | 05 5 | 02004-10-09 October 9, 2004 | 64 | Tokyo, Japan | Pro-Wrestlers Be Strongest | |
| 40 40 | Tenzan, HiroyoshiHiroyoshi Tenzan | 03 3 | 02004-12-12 December 12, 2004 | 70 | Nagoya, Japan | Battle Final tour | |
| 41 41 | Kojima, SatoshiSatoshi Kojima | 01 1 | 02005-02-20 February 20, 2005 | 83 | Tokyo, Japan | New Year Gold Series | This match was also for Kojima's AJPW Triple Crown Heavyweight Championship. |
| 42 42 | Tenzan, HiroyoshiHiroyoshi Tenzan | 04 4 | 02005-05-14 May 14, 2005 | 65 | Tokyo, Japan | Nexess VI | |
| 43 43 | Fujita, KazuyukiKazuyuki Fujita | 03 3 | 02005-07-18 July 18, 2005 | 82 | Sapporo, Japan | Summer Fight Series tour | |
| 44 44 | Lesnar, BrockBrock Lesnar | 01 1 | 02005-10-08 October 8, 2005 | 280 | Tokyo, Japan | Toukon Souzou New Chapter | This was a triple threat match that also included Masahiro Chono. |
| 44.5 — | Vacated | 01 1 | 02006-07-15 July 15, 2006 | N/A | N/A | N/A | Vacated due to Lesnar being unable to defend the title because of "problems with a working visa". Lesnar refuses to turn over the championship belt, and later is recognized by the Inoki Genome Federation as their first champion, using the same belt. |
| 45 45 | Tanahashi, HiroshiHiroshi Tanahashi | 01 1 | 02006-07-17 July 17, 2006 | 270 | Sapporo, Japan | Circuit 2006 Turbulance | Defeated Giant Bernard in a tournament final |
| 46 46 | Nagata, YujiYuji Nagata | 02 2 | 02007-04-13 April 13, 2007 | 178 | Osaka, Japan | Circuit 2007 New Japan Brave tour | |
| 47 47 | Tanahashi, HiroshiHiroshi Tanahashi | 02 2 | 02007-10-08 October 8, 2007 | 88 | Tokyo, Japan | Explosion '07 | [12] |
| 48 48 | Nakamura, ShinsukeShinsuke Nakamura | 02 2 | 02008-01-04 January 4, 2008 | 114 | Tokyo, Japan | Wrestle Kingdom II in Tokyo Dome | Defeated Kurt Angle on February 17, 2008 on the Circuit 2008 New Japan ISM tour to unify the IWGP Third Belt title. |
| 49 49 | Mutoh, KeijiKeiji Mutoh | 04 4 | 02008-04-27 April 27, 2008 | 252 | Osaka, Japan | Circuit 2008 New Japan Brave tour | |
| 50 50 | Tanahashi, HiroshiHiroshi Tanahashi | 03 3 | 02009-01-04 January 4, 2009 | 122 | Tokyo, Japan | Wrestle Kingdom III in Tokyo Dome | |
| 51 51 | Nakanishi, ManabuManabu Nakanishi | 01 1 | 02009-05-06 May 6, 2009 | 45 | Tokyo, Japan | Dissidence | |
| 52 52 | Tanahashi, HiroshiHiroshi Tanahashi | 04 4 | 02009-06-20 June 20, 2009 | 57 | Osaka, Japan | Dominion 6.20 | |
| 52.5 — | Vacated | 01 1 | 02009-08-16 August 16, 2009 | N/A | N/A | N/A | Vacated due to Tanahashi fracturing his eye socket. |
| 53 53 | Nakamura, ShinsukeShinsuke Nakamura | 03 3 | 02009-09-27 September 27, 2009 | 64 | Kobe, Japan | Circuit 2009 New Japan Generation tour | Defeated Togi Makabe to win the vacant title. |