
International Wrestling Grand Prix World Heavyweight Title Holders |
| Inoki became the first champion by defeating Masa Satio in the tournament finals. Inoki vacated the championship on May 2nd, 1988, due to a broken foot. | ||
| Fujinami became the new champion by defeating Big Van Vader. The championship was held up on May 27th, 1988, after a match between Fujinami and Riki Choshu ended in a No-Contest. | ||
| Fujinami regained the championship by defeating Riki Choshu in the rematch. The title was vacated April 5th, 1989, for a tournament. | ||
| Vader became the new champion by defeating Shinya Hashimoto in the tournament finals. | ||
Keiji Mutoh |
||
| Chono was forced to vacate the championship on September 21st, 1998, due to injuries. | ||
| Norton became the new champion by defeating Yuji Nagata in a singles match. | ||
| Sasaki vacated the belt on October 9th, 2000, after losing a non-title match to Toshiaki Kawada. | ||
| Sasaki regained the championship by defeating Toshiaki Kawada in the tournament finals. | ||
| Fujita was forced to vacate the championship in December 2001, due to injuries. | ||
| Yasuda became the new champion by defeating Yuji Nagata in the tournament finals. | ||
| Nakamura was forced to vacate the championship in January 2004, due to injuries. | ||
| Tenzan became the new champion by defeating Genichiro Tenryu in the tournament finals. | ||
| Sapp was forced to vacate the championship in May 2004, due to him leaving Japan. | ||
| Fujita became the new champion by defeating Hiroshi Tanahashi in a singles match. | ||
| Lesnar became champion by winning a "Three Way" Match over Kazuyuki Fujita and Masahiro Chono. Lesnar was stripped of the championship on July 15th, 2006, due to contractual issues. | ||
| Tanahashi became the new champion by defeating Giant Bernard in the tournament finals. | ||
| Nakamura defeated Kurt Angle in a singles match on February 17th, 2008, which unified Nakamura's title and Angle's disputed IWGP Title (which he won from Brock Lesnar). | ||
| Tanahashi was forced to vacate the championship on August 17th, 2009, due to an eye socket fracture injury. | ||
| Nakamura became the new champion by defeating Togi Makabe in a singles match. | ||