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List of Ironman Heavymetalweight Champions

Listing of professional wrestling champions for the Ironman Heavymetalweight Championship From Wikipedia, the free encyclopedia

List of Ironman Heavymetalweight Champions
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The Ironman Heavymetalweight Championship (Japanese: アイアンマンヘビーメタル級王座, Hepburn: Aianman Hebīmetaru-kyū Ōza) is a professional wrestling championship created and promoted by the Japanese promotion DDT Pro-Wrestling (DDT). Open to anyone, regardless of gender or DDT employment status, the championship is defended "24/7", as in any time, anywhere, as long as a referee is there to confirm the win. Because of this rule, not only is the championship winnable regardless of gender or number of individuals (in case of a common pinfall or submission), it is also available to "unconventional" champions such as animals or inanimate objects, with title changes regularly occurring outside of regular shows, often with videos posted on the promotion's social media accounts.[1][2] It was created as a parody of the defunct WWE Hardcore Championship, which also had a "24/7 rule".

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Ten-time and current champion, Mahiro Kiryu.

The championship was introduced on the June 29, 2000 TV taping, during which Poison Julie Sawada created the title and awarded it to himself, only to lose it in under three minutes after Mitsunobu Kikuzawa attacked him with the belt and successfully pinned him.[3]

As of December 23, 2025, there have been 1,766 officially recognized reigns between 431 different human individuals, 8 teams and 57 inanimate objects and animals. The record for most reigns is held by Shinobu, who won it 216 times, including by trading the title back-and-forth with 215-time champion Yuko Miyamoto a total of 303 times on the same night. Danshoku Dino holds the record for longest combined reign with at least 534 days and counting (the exact date of when he won his tenth title is uncertain). Masa Takanashi's sixth reign is the longest singular reign at 333 days. Only 155 individuals have held the title for longer than a day. The title has occasionally been won by unusual means, such as an auction for the belt, rock paper scissors, and even a title change that occurred in a dream.

Non-wrestlers to have held the title include AV idol Nao Saejima, TV personality LiLiCo, J-pop idols Akari Suda, Kaori Matsumura, Rise Shiokawa, Aika Sawaguchi, Misaki Natsumi, Momomi Wagatsuma and Lingling, Tokyo Metropolitan Assemblyman Shinichiro Kawamatsu, a cat named Bunny, a monkey, a three-time champion ladder, Vince McMahon's Hollywood Walk of Fame star, a copy of The Young Bucks' autobiography Killing the Business, and the title belt itself.

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Title history (2020–present)

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Combined reigns

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As of December 23, 2025.

Individual wrestlers

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Shinobu holds the record for most reigns at 216
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Danshoku Dino holds the record for longest combined reigns at 619 confirmed days.
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Masa Takanashi holds the record for the longest singular reign at 333 days
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Yoshiaki Fujiwara was the oldest champion winning the title at 63 years old

This list contains combined reigns of all male/female wrestlers who held the title for a known duration. Some names may appear more than once in the teams list underneath completed by the combined days held and times won in this one.

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Teams

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Inanimate objects, animals, etc.

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See also

Notes

      References

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