Jack Brennan boxer
- bouts
- 7
- won
- 2
- lost
- 4
- draw
- 1
- Status
- inactive
- Division
- lightweight
- Debut
- 1923-01-31
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Australia
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1925-03-09 | Leo Winch | LWWLWW | Elite Gymnasium, Hobart | DRAW Points |
| 1925-01-26 | Scotty Mason | LWWLW | Bijou Theatre, Hobart | LOST Points |
| 1924-04-01 | Scotty Mason | LW | City Hall, Hobart | LOST Points |
| 1923-05-14 | Eric Geeson | LWWWLW | City Hall, Hobart | LOST Points |
| 1923-04-23 | Teddy Jones | WLWW | City Hall, Hobart | LOST KO |
| 1923-01-31 | Eric Geeson | LWWW | Rivoli Theatre, Hobart | WIN KO |