World Boxing Association champions

Gustavo Ballas (born February 10, 1958) is an Argentine retired super flyweight boxer who fought from 1976 until 1990. He retired with a record of 105 wins (29 KOs), 9 losses and 6 draws.
Ballas fought mainly in Argentina. In 1979 he managed to outpoint future multi champion Santos Benigno Laciar in what is a still remembered fight in ArgentinaOn September 12, 1981 he became the first ever WBA world super flyweight champion by defeating Sok-Chul Bae by TKO 8 in Estadio Luna Park, Buenos Aires, Argentina. Ballas lost the title on his next fight against Rafael Pedroza in Panama. He was unsuccessful on two other attempts at winning the super flyweight title, one from the WBA and another one for the WBC.
Although he fought as much as 120 times in his career, only 4 of those fights were outside of Argentina, losing all of those fights, 3 of them for a world title.
Ballas has had troubles after boxing with alcoholism and drug addiction. He was jailed once for robbery. After that he started recovering and has taken part of anti-drugs campaigns.

Néstor Gabriel Garza (born 24 November 1976) is a Mexican professional boxer in the Light Welterweight division. He is a former WBO NABO and the WBA Super Bantamweight Champion.

Brahim Asloum (Arabic: إبراهيم اسلوم, born 31 January 1979 in Bourgoin-Jallieu, Isère) is a French boxer. He won the Light Flyweight Gold medal at the 2000 Summer Olympics. His Olympic win was France's first Olympic gold medal in boxing in 64 years.
Asloum is the former WBA light flyweight world champion.

Bruno Girard (born November 25, 1970, in Blois, France) was a French boxer who competed in the super middleweight and light heavyweight divisions, he held the WBA title in both divisions.

Julien Lorcy (born 12 April 1972) is a French former professional boxer who held the WBA lightweight title twice.

Jean-Marc Gilbert Mormeck (born 3 June 1972) is a French former professional boxer who competed from 1995 to 2014. He is a two-time unified world cruiserweight champion, having held the WBA, WBC and The Ring world titles twice between 2005 and 2007. He was the first boxer to hold unified cruiserweight title since Evander Holyfield in 1988, and the first fighter to hold The Ring cruiserweight title since Carlos De León in 1987. He was ranked by BoxRec as the world's top 10 cruiserweight from 2001 to 2005 and in 2007, and was ranked No.1 in 2003 and 2004. Mormeck also challenged for the unified world heavyweight title in 2012.

Takeshi Fuji (藤猛, born Paul Takeshi Fujii on July 6, 1940) is a Hawaiian-born Japanese former professional boxer. He is a former Lineal, WBA and WBC super lightweight (light welterweight) champion.

Billy Backus, (born March 5, 1943, in Canastota, New York) is a former World Welterweight Champion professional boxer. In the summer of 2006 Backus retired from his correctional facility job and moved to South Carolina.

Laurent Boudouani (born 29 December 1966 in Sallanches) is French former professional boxer who competed from 1989 to 1999. He held the WBA light middleweight title from 1996 to 1999 and the European light middleweight title from 1992 to 1993. As an amateur, he won a silver medal in the welterweight event at the 1988 Summer Olympics. He holds wins over five world champions such as Terry Norris, Carl Daniels, Julio Cesar Vasquez, Javier Castillejo and Guillermo Jones.

Fabrice Tiozzo (born May 8, 1969) is a French former professional boxer who competed from 1988 to 2006. He is a world champion in two weight classes, having held the WBC light-heavyweight title from 1995 to 1997, the WBA cruiserweight title from 1997 to 2000, and the WBA light-heavyweight title from 2004 to 2006. He is the younger brother of former super middleweight world champion of boxing, Christophe Tiozzo.