The tournament field included the four reigning champions of the aforementioned titles as well as the number one contender to each championship.

[6] Overall, there have been 20 AAA Mega Championship reigns and 13 total champions, and the title has been vacated twice.

El Texano Jr.'s first reign as champion gave the title world status when he defended it in Mexico.

[8] While Jarrett appeared in TNA, the title was referred to as the "Mexican Heavyweight Championship".

[9] On April 21, 2013, the title was defended outside AAA for the first time at Puerto Rico's World Wrestling League (WWL).