The first champion was Pantera, who defeated Tony Rivera in Naucalpan, Mexico on July 27, 1997 in the finals of a tournament.

The talent sharing agreement ended in 2008 but the Middleweight championship was not declared vacant even though Negro Casas was not able to defend it.

This can either be due to a storyline,[c] or real life issues such as a champion suffering an injury being unable to defend the championship,[d] or leaving the company.

[1] IWRG stripped Pentagón Black of the championship and started an eight-man, single elimination tournament on October 15, 2007.

The final match took place on November 1, 2007 at IWRG's annual El Castillo del Terror tournament.