He defended the title one time and won a handful of non-title bouts before reducing weight in order to get his first world championship opportunity.
He had several managerial problems after winning his first world championship, however, and he was able to defend that title only one time, knocking out Kenji Yokozawa in three rounds at Japan.
Gámez lost a controversial twelve-round decision; many fans and observers thought he deserved the win, and the WBA ordered an immediate rematch.
His third try at the WBA's world Jr. Flyweight title, which was vacant after Woo Yuh's retirement, came on November 21, 1993, against Shiro Yashiro, in Tokyo.
He defended the title successfully three times, with fights in Panama and Thailand (twice), before losing it to Hi-Yong Choi on February 4 of 1995, once again in Korea.
On May 20 of that year, he won the regional WBA Fedelatin Flyweight title by defeating Aquiles Guzmán by a twelve-round decision in Paraguay.
The fight, held at New York's Madison Square Garden, also marked Gámez's debut as a professional fighter in the United States.
On his first defense, held on March 11, 2001, in Yokohama, Japan, he lost the crown by a ten-round Technical knockout to Celes Kobayashi.
Gámez, as of 2014, is currently training young boxers in San Juan de los Morros in the Guarico state, and many other cities in Venezuela.