Les O'Brien boxer
- bouts
- 4
- won
- 1
- lost
- 3
- draw
- 0
- Status
- inactive
- Division
- flyweight
- Debut
- 1908-06-09
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Australia
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1923-04-06 | Bob Jones | debut | Coronation Theatre, Leichhardt, Sydney | LOST KO |
| 1922-02-10 | Leo Wax | LWWWW | Strand Stadium, Cessnock | LOST Corner retirement |
| 1920-08-11 | Bern Hanlin | debut | Hippodrome, Sydney | LOST Points |
| 1908-06-09 | Tom Stannard | L | Gaiety Athletic Hall, Sydney | WIN KO |
