Background
Castillo was born August 21, 1988 in Santo Domingo.
Castillo was born August 21, 1988 in Santo Domingo.
He boxed for the Julito López Club in Los Mina trained by Papito Pujols. He competed at the Olympic welterweight category in Beijing, China, but lost his first fight to Olexandr Stretskyy 6:9. He also went to the 2009 American Continental Championships, earning the bronze medal.
He also participated at the 2009 World Championships in Milan, Italy in the light heavyweight category ending his journey in the round of 16 combat after losing to Uzbekistani Elshod Rasulov 11-1.
In April 2012, Castillo signed for the boxing promoter Acquinity Sports along with compatriots Manuel Félix Díaz and Argenis Mendez. On July, he knocked the Mexican Ricardo Campillo in the second round in a Light Heavyweight category combat held in Hollywood, Florida, improving his record to 7-0.
In Santo Domingo, in October, he knocked out compatriot Emilio Cayetano who did not came out in the 5th round, resulting the 5th TKO and 8th victory for Castillo.