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 Juan Alberto Aranda; vacates in 75; loses his bid for WBC World Title on 75-04-19.
Carlos Maria Gimenez
1976-05-26
Awarded.
Ariel Maciel
1977-02-02
Awarded.
Wellington Wheatley
1978-04-27
Guayaquil, ECU
Diogenes Pacheco
1978-12-09
São Paulo, SP, BRA
Hugo Alfredo Luero
1979-08-04
La Plata, BA, ARG
Roberto Eduardo Alfaro
1980-03-22
Buenos Aires, DF, ARG
Ubaldo Sacco
1982-05-15
Buenos Aires, DF, ARG
Loses his bid for WBA World Title on 84-12-15; wins WBA World Title on 85-07-21.
Hugo Ariel Hernandez
1985-04-02
Awarded; vacant in 86(?).
Eduardo Roberto Benevent
1989-03-18
Lincoln, BA, ARG
Defeats Oscar Benavides Muñoz; vacant in 90.
Hugo Ariel Hernandez
1991-05-18
Buenos Aires, DF, ARG
Defeats Edmilson Alves to be recognized by CLAB.
Jorge Alberto Melian
1992-09-19
Buenos Aires, DF, ARG
Loses to FESUBOX champion Juan Carlos Ceferino Villarreal on 94-11-05 in Buenos Aires, DF, ARG (see below).
Gilberto De Carvalho
1990-12-20
Belem, Para, BRA
Defeats José Luis Saldivia to be recognized by FESUBOX.
Alfredo Horacio Jaurena
1993-09-10
Corrientes, CN, ARG
Juan Carlos Ceferino Villarreal
1994-03-11
Concordia, ER, ARG
Defeats Jorge Alberto Melian on 94-11-05 in Buenos Aires, DF, ARG to end the dispute (see above); loses his bid for WBU World Title on 98-10-24.
Carlos Wilfredo Vilches
2000-04-08
Santa Rosa, LP, ARG
Defeats Cesar Alberto Leiva.
Martin Antonio Coggi
2008-11-15
Colonia 25 de Mayo, LP, ARG
Carlos Martin Ahumada
2009-09-11
Villa Dominico, BA, ARG
Retires in 10-05; Franklin Mamani defeats Miguel Leonardo Caceres on 12-09-28 in La Paz, BOL to be recognized as champion by WBC but vacates it most likely after winning WBC FECARBOX Title on 13-03-01.
Erick Bone
2013
Interim champion since defeating Pascual Salgado on 12-09-01 in Quito, ECU; status promoted in 13; vacant in 14(?).
Marcelino Nicolas Lopez
2014-10-31
General Pinto, BA, ARG
Defeats Diego Martin Aguilera; vacant in 16(?).
Mauro Maximiliano Godoy
2017-03-10
Neuquen, NQ, ARG
Defeats Damian Leonardo Yapur.
Leonardo Fabio Amitrano
2018-01-13
Neuquen, NQ, ARG
Jeremias Nicolas Ponce
2019-04-27
Lanus, BA, ARG
Vacates in 19.
Paulo Cesar Galdino
2019-08-03
São Paulo, SP, BRA
Defeats Felipe Lares; retires in 19-12.
Leonardo Fabio Amitrano [2]
2019-12
Interim champion since defeating Emiliano Dominguez Rodriguez on 19-09-07; status promoted in 19-12.
