Career
As an amateur, Marquez represented his native country in the light heavyweight division (– 81 kg), winning a bronze medal at the 1993 Central American and Caribbean Games in Ponce, Puerto Rico. Rated as a middleweight he made his professional debut on 1995-1910-28, defeating United States of America"s Jorge Delgado in Philadelphia, Pennsylvania. He quit after 12 pro bouts (5 wins, 7 losses).