Career
Márquez also represented the United States. at the 1992 Summer Olympics in Barcelona. Márquez came to the United States. in 1976 and began his boxing amateur career. His highlights included:
Represented the United States at the 1992 Olympics at light middleweight.
His results were:
Defeated David Defiagbon (Nigeria) 8–7
Defeated Rival Cadeau (The Seychelles) 20–3
Lost to Orhan Delibaş (Netherlands) 12–16
Márquez began his professional career after the 1992 Olympics and got off to an impressive start, winning his first 25 bouts.
IBF light middleweight title challenge
All those bouts set up a shot at the Vacant IBF Light Middleweight Title against Anthony Stephens. = Márquez versus Vargas Márquez took on another elite fighter in 2003, Shane Mosley, in a fight which ended in a bloody no contest after a clash of heads.
IBF middleweight title run
On June 21, 2008, Márquez defeated Giovanni Lorenzo by unanimous decision in an IBF middleweight title eliminator. The fight took place at the Seminole Hard Rock Hotel and Casino in Hollywood, Florida.
Márquez applied pressure, while Lorenzo tried to box from the outside.
Márquez"s workrate gave Lorenzo problems, for which he often no answer. Márquez was cut over the right eye in round ten, but Lorenzo was docked a point for a headbutt in the same round and the fighters continued to fight after the bell. Scores were 114–113 across the board for Márquez.
On November 8, 2008, at the age of 37, Márquez lost to then-defeated Arthur Abraham via sixth-round technical knockout at the Bamberg"s Jako Arena, in what was the 8th defense of his IBF middleweight title.
Márquez currently works on the announcing team for Showtime on their Spanish-language broadcasts, as well as the English-language ShoBox: The New Generation series. He has also worked for Home Box Office, National Broadcasting Company, Telefutura and many other networks.