Nipper O'Brien boxer
- bouts
- 25
- won
- 15
- lost
- 9
- draw
- 1
- Status
- inactive
- Division
- lightweight
- Debut
- 1947-01-30
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Australia
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1950-03-28 | Darby Brown | LWWDLL | Leichhardt Stadium, Sydney | LOST Technical knockout |
| 1949-10-31 | Jimmy Reeves | WWDWWL | Sydney Stadium, Sydney | LOST KO |
| 1949-09-01 | Les Fuller | LLLLLW | Leichhardt Stadium, Sydney | WIN Points |
| 1949-08-04 | Billy Lord | WWWLWW | Leichhardt Stadium, Sydney | WIN Points |
| 1949-07-14 | Billy Lord | WWWWLW | Leichhardt Stadium, Sydney | LOST Points |
| 1949-05-30 | Mickey McDonald | LWLWWW | Sydney Stadium, Sydney | WIN |
| 1949-04-07 | Mickey McDonald | WWLWLW | Leichhardt Stadium, Sydney | LOST |
| 1949-03-21 | Cliff Jones | WLLWLW | Sydney Stadium, Sydney | WIN Technical knockout |
| 1948-12-10 | Cliff Jones | WWWLLW | West Melbourne Stadium, Melbourne | WIN Points |
| 1948-11-08 | Darby Brown | WLDWLW | Sydney Stadium, Sydney | WIN Points |
| 1948-09-30 | Jackie Wilson | WWWWDW | Leichhardt Stadium, Sydney | LOST Points |
| 1948-09-02 | Jackie Wilson | LWWWWD | Leichhardt Stadium, Sydney | LOST Points |
| 1948-07-23 | Dave Landers | WLLWLL | Brisbane Stadium, Brisbane | WIN Points |
| 1948-06-28 | Bernie Grant | WWWLWW | Sydney Stadium, Sydney | LOST Points |
| 1948-04-19 | Billy Watson | WDLWWW | Sydney Stadium, Sydney | WIN Points |
| 1947-11-17 | Art Denham | WLLWLL | Sydney Stadium, Sydney | LOST KO |
| 1947-11-08 | Billy Sinclair | WWWLWL | West Melbourne Stadium, Melbourne | LOST Points |
| 1947-10-27 | Jimmy Reeves | WLWLWW | Sydney Stadium, Sydney | WIN Technical knockout |
| 1947-10-20 | Jack Denahy | LWWLLL | Sydney Stadium, Sydney | WIN Points |
| 1947-09-01 | Young Lobbo | WLLWLL | Sydney Stadium, Sydney | WIN KO |
| 1947-08-13 | Mickey McDonald | WWWWWW | Sydney Stadium, Sydney | WIN Technical knockout |
| 1947-08-05 | Cec Francis | DLWLLL | Sydney Stadium, Sydney | DRAW Points |
| 1947-07-23 | Ron Everett | LWL | Sydney Stadium, Sydney | WIN Technical knockout |