Guillermo Diaz boxer
- bouts
- 27
- won
- 19
- lost
- 8
- draw
- 0
- Status
- inactive
- Division
- welterweight
- Debut
- 1955-08-27
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1938-09-04
- Death
- -
- Nationality
- Cuba
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1958-10-18 | Hipolito Baby Linares | WLLWWL | Havana | WIN KO |
| 1958-10-16 | Julio Carreras | WLLWLW | Havana | LOST Points |
| 1958-08-16 | Julio Carreras | WWLLWL | Havana | LOST Points |
| 1958-08-02 | Hipolito Baby Linares | WWLLWW | Havana | WIN KO |
| 1958-04-19 | Andres Gonzalez | WWLWLL | Palacio de Deportes, Havana | WIN KO |
| 1958-03-22 | Hipolito Baby Linares | WLLWWL | Havana | WIN Points |
| 1957-12-21 | Paul Diaz | WWWWWW | Havana | LOST Points |
| 1957-11-20 | Snyder Garland | LW | Chicago Stadium, Chicago | WIN Split-decision |
| 1957-10-22 | Joe Garza | DL | Wrigley Field, Los Angeles | WIN Points |
| 1957-07-20 | Luis Rodriguez | WWWWW | Palacio de Deportes, Havana | LOST |
| 1957-06-22 | Luis Rodriguez | WWWWW | Palacio de Deportes, Havana | LOST Points |
| 1957-06-15 | Angel Tamayo | LLWLL | Havana | WIN Points |
| 1957-05-18 | Baby Yost | debut | Fort Homer Hesterly Armory, Tampa | WIN Points |
| 1957-04-06 | Benny Kid Paret | WWLWWW | Palacio de Deportes, Havana | WIN Points |
| 1957-02-16 | Luis Rodriguez | WWWWW | Palacio de Deportes, Havana | LOST Points |
| 1957-01-12 | Osmaro Hernandez | LWWWW | Arena Trejo, Havana | WIN Points |
| 1956-11-02 | Baby Colon | WWWWWL | Matanzas | WIN KO |
| 1956-10-27 | Aristides Hodelin | LL | Havana | WIN KO |
| 1956-09-22 | Rolando Rodriguez | LWLWLD | Havana | WIN Points |
| 1956-09-01 | Vicente Reyes | WWWL | Havana | WIN Points |
| 1956-05-26 | Andres Gonzalez | WWW | Havana | LOST Points |
| 1956-04-28 | Julian Yanez | WLL | Havana | WIN Points |
| 1956-03-07 | Rene Casanovas | debut | Palacio de Deportes, Havana | WIN Points |
| 1956-01-28 | Julian Yanez | W | Havana | WIN Points |
| 1955-11-12 | Vicente Reyes | debut | Havana | LOST Points |
| 1955-11-05 | Jorge Mann | L | Tunas | WIN Points |
| 1955-08-27 | Baby Colon | WW | Havana | WIN KO |