Naito's IWGP Intercontinental Championship was also on the line.

Naito became the first ever dual World Heavyweight and IC Champion.

This was a 2-out-3 falls, no time limits match.

Defeated Togi Makabe to win the vacant championship.

Vacated due to Tanahashi fracturing his eye socket.

Defeated Kurt Angle on February 17, 2008 on the Circuit 2008 New Japan ISM tour to unify the NJPW and IGF versions of the IWGP Heavyweight Championship.

Defeated Giant Bernard in a tournament final.

Vacated due to Lesnar being unable to defend the championship 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.

This was a three–way match that also included Masahiro Chono.

This match was also for Kojima's AJPW Triple Crown Heavyweight Championship.

Defeated Hiroshi Tanahashi to win the vacant championship.

Vacated after Sapp lost a K-1 fight to Kazuyuki Fujita.

Defeated Genichiro Tenryu in a tournament final

Vacated due to various injuries.

Defeated Yoshihiro Takayama to unify the IWGP Heavyweight Championship with the NWF Heavyweight Championship on January 4, 2004, at Wrestling World 2004.

Was also for Takayama's NWF Heavyweight Championship.

Defeated Yuji Nagata in a tournament final.

Vacated due to an injured achilles tendon.

Defeated Toshiaki Kawada in a tournament final.

Vacated after Sasaki lost a non-championship match to Toshiaki Kawada at Do Judge!!.

Defeated Yuji Nagata to win the vacant championship.

Vacated due to Chono's neck injury.

This was also for Chōshū's Greatest 18 Championship.

This match was also for Chōshū's Greatest 18 Championship.

Defeated Shinya Hashimoto in a tournament final with Lou Thesz as the special referee.

Vacated so the championship could be decided in a tournament.

Defeated Riki Chōshū in a rematch.

Held up after a championship defense against Riki Chōshū ended in a no contest.

Defeated Big Van Vader.

Vacated due to Inoki fracturing his left foot.

Defeated Masa Saito in a tournament final.