In 2003, AAA President, Lic. Antonio Peña, decided to make a slight change on the tournament’s rules, and hence, the Rey de Reyes 2003 Tournament pitted its former champions against each other. In the end, wrestler La Parka emerged victorious for the second time in his career, this time defeating wrestler Abismo Negro. Such historic event took place on March 16th, on the very same place as the previous year, Auditorio Benito Juárez, on Zapopan, Jalisco.

The wrestlers who were left out the final match were Octagón, Cibernético, Canek and Latin Lover.
On other matches, wrestlers Heavy Metal, El Dandy and Pirata Morgan won over rivals Hijo del Perro Aguayo, Hombre Sin Nombre (Rayman) and Máscara Sagrada.

Also, wrestler team Los Barrio Boys (Alan, Billy y Decnnis), alongside Óscar Sevilla “El Novillero”, defeated Chessman, Psicosis II, El Picudo and Vangelis.