On October 29, 1989, Gámez was finally able to make a comeback, and he knocked out Victoriano Hernandez in five rounds that night. After one more win, he attempted, for the first time, to win the WBA's world Jr. Flyweight championship. On April 29, 1990, he was faced with long reigning world champion Myung-Woo Yuh, once again, in South Korea. Gámez lost a controversial twelve-round decision; many fans and observers thought he deserved the win, and the WBA ordered an immediate rematch. On November 10 of that year, he would again fight Woo Yuh in South Korea, and, once again, Woo Yuh won by a twelve-round decision to retain the world title.