Humberto Sierra boxer
- bouts
- 76
- won
- 47
- lost
- 24
- draw
- 5
- Status
- inactive
- Division
- featherweight
- Debut
- 1941-09-20
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1923-01-01
- Death
- -
- Nationality
- Cuba
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1952-08-23 | Gerardo Veloz | LWWWLW | Camaguey | LOST Technical knockout |
| 1951-11-07 | Don Alderson | WLWWLW | Auditorium, Miami Beach | LOST Technical knockout |
| 1951-10-16 | Tippy Larkin | WWWWWL | Laurel Garden, Newark | LOST Points |
| 1951-08-22 | Billy Scholes | WLLDWW | Bayfront Park Auditorium, Miami | LOST Points |
| 1951-01-26 | Billy Scholes | WLWDWW | Fort Homer Hesterly Armory, Tampa | LOST Unanimous decision |
| 1950-12-22 | Billy Neumont | WWWWWW | Legion Arena, West Palm Beach | LOST Points |
| 1950-12-01 | Nazzareno Vitale | LDLWDL | Legion Arena, West Palm Beach | WIN Points |
| 1950-11-22 | Billy Scholes | WWWWLW | Fort Homer Hesterly Armory, Tampa | DRAW Points |
| 1950-11-06 | Bernie Dowd | WWLLWW | Coliseum, Coral Gables | DRAW Points |
| 1950-07-08 | Diego Sosa | WWWWL | Palacio de Deportes, Havana | LOST Technical knockout |
| 1950-06-14 | Mimmie Adragna | DWLWWD | Zivic Arena, Millvale | WIN Points |
| 1950-03-28 | Arthur King | WWWWWW | Maple Leaf Gardens, Toronto | LOST Technical knockout |
| 1950-02-27 | Charley Riley | LWLWWL | Arena, Saint Louis | LOST KO |
| 1949-12-14 | Guillermo Gimenez | LLWWDL | Dinner Key Auditorium, Miami | WIN Split-decision |
| 1949-10-22 | Diego Sosa | WWWWW | Palacio de Deportes, Havana | WIN Points |
| 1949-09-21 | Paddy DeMarco | WWWWDW | Dinner Key Auditorium, Miami | LOST Unanimous decision |
| 1949-08-14 | Young Finnigan | WLWWLW | Arena de Colon, Colon City | LOST Points |
| 1949-06-21 | Jose Colon Garcia | WWWLLL | Legion Arena, West Palm Beach | WIN Points |
| 1949-06-09 | Jose Colon Garcia | LWWWLL | Causeway Arena, Miami | WIN Points |
| 1949-03-17 | Jackie Graves | WDWWWW | Auditorium, Minneapolis | LOST KO |
| 1949-02-02 | Paddy DeMarco | WWWLWW | Manhattan Center, New York | LOST Unanimous decision |
| 1948-10-26 | Alfredo Pescatore | WDLWLL | Auditorium, Hartford | WIN Points |
| 1948-10-18 | Freddie Russo | WWDLWW | Rhode Island Auditorium, Providence | LOST KO |
| 1948-10-13 | Lino Garcia | LLLWLL | Biscayne Arena, Miami | WIN Points |
| 1948-09-24 | Jose Gonzalez | WWLLLL | Biscayne Arena, Miami | WIN Points |
| 1948-07-10 | Jose Alberto Diaz | LLWWL | Caracas | LOST Points |
| 1948-04-09 | Jose Gonzalez | WWDDLL | Municipal Auditorium, New Orleans | LOST Technical knockout |
| 1948-02-24 | Willie Pep | WWWWWW | Orange Bowl, Miami | LOST Technical knockout |
| 1947-11-19 | Floyd Shiflett | WWWDWW | Civic Center Arena, Miami | WIN Points |
| 1947-10-03 | Sandy Saddler | WDWWWW | Auditorium, Minneapolis | WIN Split-decision |
| 1947-07-23 | Willie Pep | WWWWWW | Auditorium Outdoor Arena, Hartford | LOST Unanimous decision |
| 1947-07-01 | Dennis Pat Brady | WWWWWW | Auditorium Outdoor Arena, Hartford | WIN Points |
| 1947-06-04 | Jackie Callura | LLLDLL | Biscayne Arena, Miami | WIN Technical knockout |
| 1947-04-23 | Lulu Costantino | WLLLLL | Civic Center Arena, Miami | WIN Unanimous decision |
| 1947-02-26 | Nick Stato | DDWLWW | Civic Center Arena, Miami | LOST Technical knockout |
| 1947-02-12 | Lefty LaChance | WWWLWL | Civic Center Arena, Miami | WIN Points |
| 1947-01-14 | Ernie Nogues | LDWWWL | Biscayne Arena, Miami | WIN Points |
| 1947-01-06 | Eduardo Serratos | WWLLW | Biscayne Arena, Miami | WIN Points |
| 1946-12-23 | Mario Chico Morales | WLDWWW | Biscayne Arena, Miami | DRAW Points |
| 1946-12-16 | Cliff Gregory | LLLLLD | Biscayne Arena, Miami | WIN Technical knockout |
| 1946-11-04 | Woody Woodcock | WWWWW | Biscayne Arena, Miami | WIN KO |
| 1946-10-28 | Manolito Kid | LLWWWW | Biscayne Arena, Miami | WIN Points |
| 1946-10-14 | Stacky Rowe | WWWWWW | Biscayne Arena, Miami | WIN Points |
| 1946-10-10 | Johnny Dyson | WLLLWL | Biscayne Arena, Miami | WIN Technical knockout |
| 1946-02-06 | Beto Garcia | L | Mexico City | WIN KO |
| 1945-12-14 | Ritchie Shinn | WWLLWW | National Hall, San Francisco | LOST Points |
| 1945-10-30 | Enrique Bolanos | WWWWWL | Olympic Auditorium, Los Angeles | LOST KO |
| 1945-06-26 | Bobby Jackson | WWWLWW | Olympic Auditorium, Los Angeles | WIN Technical knockout |
| 1945-06-13 | Abel Lucero | WWWWWW | Auditorium, Oakland | WIN KO |
| 1945-04-03 | Paul Requejo | WWLWLD | Olympic Auditorium, Los Angeles | WIN Unanimous decision |
| 1945-03-06 | Ralph Lara | WWWWWL | Olympic Auditorium, Los Angeles | WIN Unanimous decision |
| 1944-11-04 | Alvaro Estrada | LLLWWW | Arena Canada Dry, Guadalajara | WIN Points |
| 1944-04-01 | Diego Sosa | LWWLWL | Oriente | WIN Points |
| 1944-02-05 | Bombon Oriental | WWWWWW | Oriente | WIN Points |
| 1943-11-20 | Diego Sosa | WLWWLW | Oriente | WIN Points |
| 1943-11-06 | Ignacio Alfonso | WLWLLL | Havana | WIN Points |
| 1943-08-07 | Sojitos Gonzalez | debut | Oriente | WIN KO |
| 1943-07-16 | Aristides Cintras | W | Oriente | WIN Points |
| 1943-05-12 | Kid Bururu | WWWWWD | Oriente | DRAW Points |
| 1943-04-17 | Juan Sanchez | LLW | Oriente | WIN Points |
| 1943-02-06 | Kid Rapidez | DLLLL | Stadium, Santiago de Cuba | WIN Points |
| 1942-12-12 | Miguel Acevedo | WWWWLW | Arena Cristal, Havana | LOST Points |
| 1942-10-10 | Juan Congo Guevara | WDLLL | Arena Cristal, Havana | WIN Points |
| 1942-09-26 | Mariano Isaac | L | Arena Cristal, Havana | WIN KO |
| 1942-09-12 | Miguel Acevedo | WWWWWW | Arena Cristal, Havana | WIN Points |
| 1942-07-18 | Pedro Poey | WWWLLW | Arena Cristal, Havana | LOST KO |
| 1942-05-23 | Lorenzo Collazo | DLDL | Havana | WIN KO |
| 1942-04-11 | Juan Sanchez | LL | Oriente | LOST Points |
| 1942-03-21 | Pototo Ribalta | WWWLDW | Havana | WIN Points |
| 1942-01-31 | Pototo Ribalta | DLWWWL | Arena Cristal, Havana | DRAW Points |
| 1942-01-10 | Pototo Ribalta | WDLWWW | Havana | WIN Points |
| 1941-12-20 | Maximo Morales | LLDLLL | Pinar del Rio | WIN Points |
| 1941-11-22 | Ignacio Alfonso | LWWLWD | Pinar del Rio | WIN KO |
| 1941-10-18 | Roberto Silveira | LL | Arena Cristal, Havana | WIN KO |
| 1941-09-29 | Jose M Nunez | LLL | Havana | WIN Points |
| 1941-09-20 | Jose M Nunez | LL | Havana | WIN Points |
