It was created on January 6, 2003, with Steve Corino defeating Masato Tanaka.
[1] In addition to Japan, it has recently been frequently defended in various independent companies in the United States.
The title was created at a time when the company was known as Pro Wrestling Zero-One, originally naming it the Zero-One United States Heavyweight Championship; on July 4, 2004, following Zero-One joining the National Wrestling Alliance (NWA), the title was renamed the NWA/Zero-One United States Heavyweight Championship.
[1] On April 12, 2008, it was renamed back to its original title by Steve Corino, in honor of Zero1-Max's late founder Shinya Hashimoto.
[2] There have been a total of 11 recognized champions who have had a combined 18 official reigns.