Box-pro 35 bouts |
| date | w-l-d | last 6 | result | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1958-07-02 | Ruben Caceres | 11 1 6 |  
| Estadio Rafael Castro, Montevideo | L-DQ
| |||||||
ref: Hortencio Gularte
While being counted over, Barenghi was disqualified when his second entered the ring to claim a foul.
| ||||||||||||
| 1958-06-13 | Roberto Lobos | 20 2 3 | 
| Teatro Circo Caupolicán, Santiago de Chile | L-RTD
| |||||||
Barenghi retired after round 1.
| ||||||||||||
| 1958-05-23 | Roberto Lobos | 19 2 3 |
| Teatro Circo Caupolicán, Santiago de Chile | L-KO
| |||||||
ref: Carlos Diaz
| ||||||||||||
| 1957-12-01 | Oscar Morales | 0 3 0 | 
| Buenos Aires | W-PTS
| |||||||
| 1957-11-01 | Ernesto Miranda | 16 3 3 |
| Buenos Aires | L-KO
| |||||||
| 1957-09-21 | Angel Parisi | 3 15 4 |
| Moron | W-KO
| |||||||
| 1957-08-02 | Oscar Cedano | 11 0 5 |
| Estadio Babilonia, Buenos Aires | D-PTS
| |||||||
| 1957-07-13 | Oscar Morales | 0 1 0 |
| Buenos Aires | W-PTS
| |||||||
| 1957-06-29 | Avelino Romero | 0 1 0 |
| Buenos Aires | W-PTS
| |||||||
| 1957-06-01 | Oscar Cedano | 10 0 4 |
| Estadio Luna Park, Buenos Aires | D-PTS
| |||||||
| 1957-05-03 | Antonio Gomez | 6 12 2 |
| Buenos Aires | W-PTS
| |||||||
| 1957-04-09 | Raul Jaime | 1 9 1 |
| Martinez | W-PTS
| |||||||
| 1957-02-22 | Alberto Palomeque | 0 5 0 |
| Martinez | W-PTS
| |||||||
| 1957-02-08 | Emilio Avila | 0 8 0 |
| Mataderos, Buenos Aires | W-KO
| |||||||
| 1956-10-01 | Carlos Romero Luque | 2 5 0 |
| Martinez | W-PTS
| |||||||
Date Unknown
| ||||||||||||
| 1956-09-01 | Jose Luis Salvatierra | 0 1 0 |
| Villa Ballester | W-KO
| |||||||
Date Unknown
| ||||||||||||
| 1956-07-20 | Juan Carlos Luduena | 0 3 0 |
| Martinez | W-PTS
| |||||||
| 1956-03-02 | Isidro Pesoa | debut | Ramos Mejia | W-PTS
| ||||||||
| 1956-02-17 | Alves Da Costa | debut | Villa Ballester | W-KO
| ||||||||
| 1955-11-05 | Leo Espinosa | 21 5 0 |
| Buenos Aires | L-PTS
| |||||||
| 1955-07-21 | Jose D Cuello | 0 1 0 |
| Martínez | W-KO
| |||||||
| 1955-04-13 | Pascual Perez | 24 0 1 |
| Buenos Aires | L-KO
| |||||||
Perez down in the second round for no count, while Barenghi was floored three times in total during the bout.
| ||||||||||||
| 1955-02-25 | Cirilo Burgos | 0 1 1 |
| Miramar | W-PTS
| |||||||
| 1955-02-11 | Pablo Sosa | 0 12 0 |
| Martínez | W-KO
| |||||||
| 1954-12-22 | Pablo Sosa | 0 11 0 |
| Buenos Aires | W-TKO
| |||||||
| 1954-11-03 | Marcelo Quiroga | 1 5 0 |
| Estadio Luna Park, Buenos Aires | W-KO
| |||||||
| 1954-09-13 | Pablo Sosa | 0 9 0 |
| Estadio Luna Park, Buenos Aires | W-PTS
| |||||||
| 1954-08-11 | Yoshio Shirai | 44 6 4 |
| Estadio Luna Park, Buenos Aires | L-PTS
| |||||||
| 1954-07-21 | Natalio Caruso | debut | Buenos Aires | W-KO
| ||||||||
| 1954-07-03 | Marcelo Quiroga | 1 3 0 |
| Estadio Luna Park, Buenos Aires | W-TKO
| |||||||
ref: Ivan Nunez
| ||||||||||||
| 1954-06-30 | Domingo Sandoval | 0 3 0 |
| Buenos Aires | W-KO
| |||||||
| 1954-02-26 | Kid Mario | 0 2 0 |
| Martinez | W-PTS
| |||||||
| 1953-11-21 | Roberto Castro | 1 1 2 |
| Estadio Luna Park, Buenos Aires | L-PTS
| |||||||
Title vacant since Francisco Magnelli relinquished the title in 1936
| ||||||||||||
| 1953-08-26 | Roberto Castro | 1 0 0 |
| Estadio Luna Park, Buenos Aires | D-PTS
| |||||||
| 1953-04-22 | Jose Ciorino | 0 4 0 |
| Buenos Aires | W-KO
| |||||||