Most Reigns
- Hiroshi Tanahashi (8)
- Kazuchika Okada (7)
- Tatsumi Fujinami (6)
The NJPW IWGP Heavyweight Championship dates to June 12, 1987, when Antonio Inoki defeated Masa Saito in the IWGP League tournament final to become the inaugural champion. That version of the title ran for nearly 34 years and became the most prestigious heavyweight prize in Japanese wrestling.
It defined careers across three generations, from Tatsumi Fujinami and the Three Musketeers of Keiji Muto, Masahiro Chono, and Shinya Hashimoto, to the global era built around Hiroshi Tanahashi and Kazuchika Okada. Okada’s 720-day fourth reign from 2016 to 2018 remains the longest in the title’s combined history.
That era ended on March 4, 2021, when Kota Ibushi made the final defense of the belt at the NJPW 49th Anniversary Show before it was retired and merged with the IWGP Intercontinental Championship.
The second era was known as the IWGP World Heavyweight Championship that ran from March 4, 2021, through January 4, 2026. Ibushi was recognized as the inaugural champion following a press conference on March 1, 2021, and a new belt design was introduced.
The World title produced 15 reigns across 12 champions in five years, including runs by Okada, SANADA, Naito, Ospreay, Moxley, Goto, and Zack Sabre Jr. That era ended at Wrestle Kingdom 20 on January 4, 2026, when Yota Tsuji defeated Konosuke Takeshita in a double-title match at the Tokyo Dome, then immediately set in motion the restoration of the Heavyweight Championship.
The current era began on January 6, 2026. The groundwork was laid the night before at New Year Dash on January 5, when Tsuji appeared with the physical V4 belt concealed beneath his jacket. He instructed the ring announcer to introduce him as the IWGP Heavyweight Champion rather than the IWGP World Heavyweight Champion, then opened his jacket to reveal the restored belt. The V4 design, which had been used from 2008 through 2021 and was widely regarded as the most iconic version of the belt, was back as the championship’s visual representation.
The restoration became official the following day when Tsuji held a press conference alongside NJPW President Hiroshi Tanahashi, who had retired from active competition at Wrestle Kingdom 20 in the event’s headline match against Okada.
Tanahashi gave his formal approval for the restoration after deliberation and authorized the official merger of all three lineages into one: the original IWGP Heavyweight Championship history from 1987, the IWGP World Heavyweight Championship history from 2021, and the IWGP Intercontinental Championship history. All former IWGP World Heavyweight Champions were retroactively recognized as IWGP Heavyweight Champions, and Tsuji was recognized as the 87th champion in the combined lineage.
At the same press conference, Tsuji brought out the physical IWGP Intercontinental Championship belt for its final public appearance before officially retiring it, citing its overlap in purpose with the IWGP Global Heavyweight Championship.
The revival came with clear structural intent. Tsuji designated the IWGP Heavyweight Championship as a title contested exclusively in Japan against NJPW-contracted talent, positioning it as the promotion’s most protected domestic prize. He stated that the belt must always appear in the main event position at any show where it is contested and pledged to boycott any event that places it lower on the card.
The IWGP Global Heavyweight Championship was assigned an international role, appearing on joint cards with AEW and CMLL, while the Heavyweight title remained in NJPW’s domestic shows.
Tsuji’s first defense came against Jake Lee, who had attacked him in the ring immediately after his Wrestle Kingdom 20 victory and aligned himself with United Empire. The first title change of the restored era occurred at Sakura Genesis on April 4, 2026, where Callum Newman defeated Tsuji to become the new IWGP Heavyweight Champion in his first reign. Tsuji’s reign had lasted 90 days.
Newman made history as the first British-born IWGP Heavyweight Champion, continuing the tradition of international wrestlers reaching the top of NJPW’s heavyweight division, which stretches back to AJ Styles, Brock Lesnar, and Big Van Vader.
