Triplemanía XX was a professional wrestling event which took place on August 5, 2012, at the Arena Ciudad de México in Mexico City. The event marked AAA’s debut in the new Arena Ciudad de México. This event was headlined by a match between Dr. Wagner Jr. and Máscara Año 2000 Jr., where the loser was forced to unmask himself. In the end, Máscara Año 2000 Jr. was unmasked by his daughter and revealed his real name: Ángel Reyes, from Lagos de Moreno, Jalisco.

In the semi-main event, El Mesías defended the AAA Mega Championship against the 2012 Rey de Reyes, El Hijo del Perro Aguayo, who were seconded by Cibernético and Héctor Garza with Taya Valkyrie, respectively.

On the previous match, the so-called Team Joaquín Roldán (Electroshock and L.A. Park, with Joaquín Roldán himself) defeated Team Dorian Roldán (Jeff Jarrett and Kurt Angle, alongside Dorian Roldán and Karen Jarrett)
On a scalp vs. scalp bet match, wrestler Psicosis won against rival Joe Líder.

The previous match had wrestler La Parka teamed up with Los Psycho Circus (Monster Clown, Murder Clown and Psycho Clown), whom defeated rival team El Consejo (Semental, El Texano Jr. and Toscano) alongside Octagón.

Shortly after, on a “Parejas Suicidas” steel cage match, wrestling coalition La Hermandad 187 (Joe Líder and Psicosis) were defeated by Chessman and Juventud Guerrera, La Familia de Tijuana (Extreme Tiger and Halloween), and the so-called Hart Foundation 2.0 (Jack Evans and Teddy Hart)

The opening fight of the night saw Faby Apache, Fénix, Octagóncito and Pimpinela Escarlata win against rivals Dark Dragon, Mini Charly Manson, Sexy Star and Yuriko.

The event also featured TNA Wrester Kurt Angle’s AAA debut and Perro Aguayo’s induction into the AAA Hall of Fame.