Guillermo Lopez (La Vieja) boxer
- bouts
- 21
- won
- 9
- lost
- 9
- draw
- 3
- Status
- inactive
- Division
- welterweight
- Debut
- 1941-09-13
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1916-07-29
- Death
- -
- Nationality
- Argentina
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1948-05-22 | Alberto Daher | WLWWW | Tandil | LOST Points |
| 1947-12-27 | Mario Diaz | WWLWWW | Estadio Luna Park, Buenos Aires | LOST Points |
| 1946-10-12 | Alfonso Senatore | LLLWLW | Estadio Luna Park, Buenos Aires | LOST Points |
| 1946-09-28 | Conrado Vera | WWWDLL | Estadio Luna Park, Buenos Aires | WIN Points |
| 1946-08-03 | Kid Cachetada | WWWWDW | Estadio Luna Park, Buenos Aires | LOST Points |
| 1946-03-26 | Mario Diaz | WWLWDD | Buenos Aires | LOST Points |
| 1946-02-17 | Alfonso Senatore | WLWWLL | Estadio Luna Park, Buenos Aires | WIN Points |
| 1945-11-03 | Amelio Piceda | DWWLDW | Estadio Luna Park, Buenos Aires | LOST Points |
| 1945-08-04 | Mario Diaz | DWWLWW | Estadio Luna Park, Buenos Aires | WIN Points |
| 1945-07-21 | Alfonso Senatore | WDWLWW | Buenos Aires | WIN Points |
| 1945-05-05 | Amelio Piceda | WWWWDW | Estadio Luna Park, Buenos Aires | LOST Points |
| 1945-03-10 | Jose Rios | WWWWWW | Estadio Luna Park, Buenos Aires | WIN Points |
| 1945-02-09 | Aladino Remis | debut | Teatro Caupolican, Santiago de Chile | WIN Points |
| 1944-09-30 | Amelio Piceda | WWLWWW | Estadio Luna Park, Buenos Aires | LOST Points |
| 1944-02-12 | Amelio Piceda | WDDDWD | Estadio Luna Park, Buenos Aires | LOST Points |
| 1943-11-20 | Amelio Piceda | WWWWDD | Estadio Luna Park, Buenos Aires | DRAW Points |
| 1943-09-05 | Amelio Piceda | WWWWWD | Buenos Aires | DRAW Points |
| 1943-06-20 | Kid Azteca | LWLWWW | Estadio Luna Park, Buenos Aires | WIN Points |
| 1943-05-08 | Victor Castillo | DDLLWD | Estadio Luna Park, Buenos Aires | WIN Points |
| 1943-02-06 | Zacarias Flores | WLLWLL | Estadio Luna Park, Buenos Aires | WIN Points |
| 1941-09-13 | Amelio Piceda | WDWWWW | Cordoba | DRAW Points |
