Following the name of the champion(s): Indicates the number of times the competitor has held that title at that point.
[...]
Indicates a gap in the listing where title changes are not known.
<
Title was held or changed hands no later than this. In these cases, it is known that a competitor held the title at a certain time but not when he/she won it.
@
Order uncertain. Different titleholders may be known for the same year, for example, but it is not known who held the title before whom.
#
Unofficial or disputable claims. These are usually matches that certainly took place, but where there is doubt that the competitor shown should be recognized as a true title holder. These listings are also italicized.
Defeats Sergio Oscar Arreguez; loses his bid for WBA World Title on 91-04-20.
Arao Macedo #
1991-06-06
Belem, Para, BRA
Defeats Sergio Rafael Liendo but is not recognized by South American Boxing Federation (FESUBOX) due to a controversial decision.
Sergio Rafael Liendo
1991-11-06
Belem, Para, BRA
Defeats Macedo for the title.
Cesar Armando Martinez
1994-05-12
Buenos Aires, DF, ARG
Vacant in 95.
Pastor Humberto Maurin
1996-02-02
Buenos Aires, DF, ARG
Defeats Walter Ricardo Farias.
Sergio Rafael Liendo [2]
1997-01-24
Mar del Plata, BA, ARG
Maurin fails to make weight for the scheduled title match; title is awarded to Liendo although Maurin wins the match; vacant in 97.
Pastor Humberto Maurin [2]
1998-01-30
Mar del Plata, BA, ARG
Defeats John Alex Gonzalez; stripped of the title due to failure to make weight for his scheduled title defense against Jorge Antonio Paredes in 98-09.
Jorge Antonio Paredes
1998-09-12
Awarded after Maurin is stripped of the title due to failure to make weight.
Eduardo Enrique Alvarez
1999-10-15
Corrientes, CN, ARG
Fabio Daniel Oliva
2001-04-28
Catamarca, CT, ARG
Pastor Humberto Maurin [3]
2003-04-05
Río Gallegos, SC, ARG
Carlos Oliveira
2006-06-24
Cubatao, SP, BRA
Vacant in 07(?).
Sergio Carlos Santillan
2010-05-14
Chajari, ER, ARG
Defeats Darli Goncalves Pires; loses his bid for WBA Intercontinental Title on 12-04-29.
Sergio Carlos Santillan [2]
2012-10-06
Monte Caseros, CN, ARG
Defeats Damian David Marchiano.
Luis Emanuel Cusolito
2015-03-28
Catamarca, CT, ARG
Javier Nicolas Chacon
2019-03-08
Villa Dolores, CB, ARG
Loses his bid for interim WBA World Title on 19-08-14.
Hector Andres Sosa
2020-01-18
Villa Carlos Paz, CB, ARG
Defeats Ernesto Sebastian Franzolini; vacant in 22.
Rodrigo Fabian Ruiz
2022-07-02
San Lorenzo, SF, ARG
Defeats Luis Guerrero; also wins IBF Latino Title on 23-10-29; still champion as of 25-03-22; loses in a non-title match on 25-07-05.
