1957-12-07 Pascual Perez w co 3 (15) Young Martin, Boca Juniors Stadium, Buenos Aires, Argentina - WORLD
1957-12-07 Pascual Perez w co 3 (15) Young Martin, Boca Juniors Stadium, Buenos Aires, Argentina - WORLD. Referee: Hiram Nunez. Coming out fast, Martin (112) gave the champion all he could handle in the first two rounds, but then the lights went out at 2.05 of the third. The challenger’s southpaw stance presented Perez (108¼) with no real problems, being made to measure for the right hand that put him down for the full count.
On 22 March 1958 at the Moron Sports Club, Buenos Aires Perez knocked out Ricardo Valdez, who scaled less than 112lbs, in the eighth round of a non-title contest. In future all of Perez’s non-championship opponents would contractually declare weights in excess of the class limit.
Despite participating in just ten contests, Ramon Arias would be Perez’s next challenger after beating Ramon Calatayud (twice), Oscar Suarez, Aristide Pozzali, Dommy Ursua and Memo Diez. Rated at number one by The Ring magazine, Arias became the first Venezuelan to contest a world title.