March 5, 1994: KO'd Jimmi Bredahl in 10th round for WBO superfeatherweight title.
July 29, 1994: KO'd Jorge Paez in second round for vacant WBO lightweight title.
June 7, 1996: TKO'd Julio Cesar Chavez in fourth round for WBC light welterweight title.
April 12, 1997: Decisioned Pernell Whitaker for WBC welterweight title.
Feb. 26, 2000: KO'd Derrell Coley in seventh round to win vacant IBA welterweight title.
June 23, 2001: Decisioned Javier Castillejo for WBC light middleweight title.
Sept. 14, 2002: TKO'd Fernando Vargas in 11th round to win WBA, IBA and retain WBC light middleweight titles.
June 5, 2004: Decisioned Felix Sturm to win WBO middleweight title.
May 6, 2006: TKO'd Ricardo Mayorga in sixth round to win WBC light middleweight title.