Jack Brennan boxer
- bouts
- 8
- won
- 3
- lost
- 5
- draw
- 0
- Status
- inactive
- Division
- heavyweight
- Debut
- 1950-07-10
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1952-02-07 | Jack Nelson | LWLWWW | Boston Garden, Boston | LOST Technical knockout |
| 1951-12-03 | Ray Phillips | WWWWWW | Mechanics Building, Boston | LOST Split-decision |
| 1951-11-26 | Willie Wilson | WWW | Rhode Island Auditorium, Providence | LOST Points |
| 1951-10-22 | Willie Wilson | WW | Rhode Island Auditorium, Providence | LOST Points |
| 1951-08-27 | Bobby Woods | WWWLW | Boston Garden, Boston | WIN Unanimous decision |
| 1951-08-06 | Davie Souza | LWWWDL | Boston Garden, Boston | WIN Unanimous decision |
| 1950-12-04 | Lou Thrasher | WWL | Mechanics Building, Boston | WIN Technical knockout |
| 1950-07-10 | Lou Thrasher | debut | Braves Field, Boston | LOST Technical knockout |