Lefty O'Brien pugile
- combattimenti
- 1
- vinto
- 1
- perduto
- 0
- pareggiare
- 0
- Stato
- inactive
- Divisione
- featherweight
- Debutto
- 1930-07-15
- Altezza
- -
- Arrivare a
- -
- Età
- -
- Nato
- -
- Morte
- -
- Nazionalità
- USA
| Data | Avversario | Ultimi risultati degli avversari | Luogo | Risultato |
|---|---|---|---|---|
| 1934-06-05 | Speed Ricco | LDDWDL | Riverview Park, Des Moines | LOST |
| 1933-07-26 | Bobby McLaughlin | LLLWDL | Boone | DRAW |
| 1932-10-17 | Sailor O'Connor | WDDWWW | Coliseum, Des Moines | LOST |
| 1930-10-16 | Al Manriquez | WLWWWD | Iowa Theatre, Atlantic | LOST |
| 1930-09-16 | Al Manriquez | WWLWWW | Legion Memorial Building, Atlantic | DRAW |
| 1930-08-19 | Frankie Dunn | WDL | Forest Park, Marshalltown | DRAW |
| 1930-08-13 | Frankie Dunn | WD | Coliseum, Des Moines | WIN |
| 1930-08-05 | Frankie Dunn | W | Riverview Park, Des Moines | DRAW |
| 1930-08-01 | Cliff Staples | debut | Riverview Park, Des Moines | WIN Technical knockout |
| 1930-07-25 | Tommy Maroon | WWLWLL | Riverview Park, Des Moines | DRAW |
| 1930-07-22 | Benny Williams | DWL | Riverview Park, Des Moines | WIN |
| 1930-07-18 | Benny Williams | DW | Riverview Park, Des Moines | WIN |
| 1930-07-15 | Kid Rhoda | DD | Riverview Park, Des Moines | WIN |