[1][2][3] Pérez was born into a family of winemakers in the Uco Valley, Tupungato district of the Mendoza province, where he was the youngest of nine children.

Though naturally left-handed he trained right-handed; his height, which only reached 1.52 m as an adult, was smaller than the rest of his opponents in the flyweight division.

That same year, his father had to pay money to hire a farm laborer who could replace Perez in the vineyard, as a condition for granting legal consent required by the regulations on parental rights[clarification needed].

[3] Initially Pascual Perez was mistakenly disqualified from the tournament when his official weight was mixed up with Arnoldo Parés, a boxer in a heavier class.

[3] In the finals, Pérez faced the Italian Spartacus Bandinelli (28 years old), who had an upset victory in the quarterfinals over the favored Martínez Zapata.

[3] Felix Frascara of Figura magazine, covered the match and after Perez' victory commented: Pascual Perez has been, round by round, climbing his way to fame: first (he was) champion of his city Mendoza, (later of) his province; in short order he became the Argentine River Plate and Latin American flyweight champion.

Then, he's aggressive; (having) an extremely strong punch in proportion to his weight; and (he) utilizes all his resources in full speed, without losing the line.

His last amateur fight was November 14 of 1952, in the Golden Strip Club winning by points in five rounds against Paul Rapretti.

[clarification needed] On December 5, 1952, Pérez beat José Ciorino by knockout in round four at the small Argentine city of Gerly, to begin his professional boxing career.

The Argentine ambassador in Japan, Carlos Quiroz, at the direction of then-President Juan D. Peron, took steps to set up a match in Buenos Aires against Shirai, without the title at stake.

The match ended tied and was an extraordinary event in the country, for the first time an Argentine professional boxer was not defeated by a world champion.

The tie forced Yoshio Shirai, as was standard in the boxing world then, to grant a rematch against the Argentine boxer again in a fight with the title at stake.

[8] Pérez won his next twenty-eight bouts, mostly against nondescript opposition but he did score a pair of victories over the once-promising but by then fading Uruguayan Waldemiro Torres.

Then, after dropping a split decision to Filipino veteran Leo Zulueta and outpointing Panamanian journeyman Manuel Moreno in his next two bouts, he faced perennial world title contender Bernardo Caraballo in Colombia on July 23, 1963.

In 1995, the Hall of Fame in Canastota (IBHOF) did the same, where he is included with Argentine boxers Carlos Monzon, Nicolino Locche, and Victor Galindez.

[9] In 1954, writer Rafael Lauria and musicians Hector Maure and Sergio Gasparini composed a tango titled "The great champion," recorded by Hector Maure, part of which reads: Pascualito handsome Creole're our first champion.today Argentines breastsare full of emotion.Prominent journalist Chon Romero praised Pascual Perez in the following statement: He was addicted to striking bell to bell, perhaps from the awareness a fighter gains when punches connect.