Joe Brennan (KO Joe Brennan) boxer
- bouts
- 12
- won
- 8
- lost
- 4
- draw
- 0
- Status
- inactive
- Division
- lightweight
- Debut
- 1914-05-25
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1923-04-20 | Jack Doyle | debut | Academy Theater, Pittsburgh | WIN Technical knockout |
| 1923-03-26 | Vic Brog | LWWWWW | Southside Market House, Pittsburgh | LOST |
| 1921-05-17 | Eddie Forney | LLDLDD | Idora Park, Youngstown | LOST |
| 1921-01-25 | Willie Scott | LLLDLW | Academy Theater, Pittsburgh | WIN |
| 1920-12-28 | Joe Meyers | L | Academy Theater, Pittsburgh | WIN |
| 1919-12-08 | Val Grunenwald | LWWWWW | Southside Market House, Pittsburgh | LOST |
| 1918-01-12 | Jack Perry | WDWWWW | Southside Market House, Pittsburgh | LOST |
| 1917-10-13 | Chick Rodgers | LDDWWD | Southside Market House, Pittsburgh | LOST KO |
| 1917-09-28 | Ray Pryel | WWWWWL | Turner Hall, Homestead | LOST Technical knockout |
| 1917-07-30 | Joe Korch | LLWWWD | Forbes Field, Pittsburgh | WIN KO |
| 1917-03-31 | Joe LaRue | LDWWWD | Skating Rink, Charleroi | LOST |
| 1917-03-24 | Tommy Phillips | LLLWWD | Southside Market House, Pittsburgh | WIN |
| 1917-03-12 | Jimmy O'Day | WWWLWW | Latrobe | DRAW |
| 1917-03-10 | Terry Murphy | D | Southside Market House, Pittsburgh | WIN KO |
| 1916-12-19 | Tommy Cloonan | LWLWLW | Southside Market House, Pittsburgh | WIN |
| 1916-12-09 | Joe LaRue | WWLDW | Skating Rink, Charleroi | LOST |
| 1916-11-13 | Earl Fisher | LDLLWL | Grand Opera House, Youngstown | LOST |
| 1916-11-11 | Chick Rodgers | LWLDDD | Skating Rink, Charleroi | LOST |
| 1916-05-29 | Mose Donnelly | L | Youngstown | DRAW |
| 1916-05-06 | Danny Cummings | LWDLDL | Skating Rink, Charleroi | WIN Technical knockout |
| 1916-04-22 | Young Daniels | debut | Skating Rink, Charleroi | WIN Technical knockout |
| 1916-01-22 | Dick DeSanders | LLWLWW | Skating Rink, Charleroi | LOST KO |
| 1915-12-16 | Johnny Garrity | DLLWW | Johnstown | WIN |
| 1915-10-11 | Eddie Forbes | WWLWW | Auditorium, Johnstown | WIN |
| 1915-09-13 | Eddie Carver | WWLWWD | Duquesne Gardens, Pittsburgh | DRAW |
| 1915-04-19 | Barney McGuire | WLWDDW | Johnstown | LOST |
| 1915-04-17 | Billy McCoy | debut | Washington | WIN KO |
| 1915-03-17 | Johnny Neuner | WWWWL | Duquesne Gardens, Pittsburgh | WIN KO |
| 1915-02-25 | Young Sharkey | LWLLWW | Southside Market House, Pittsburgh | WIN |
| 1915-01-09 | Joe Tully | LWDLDL | Washington | LOST |
| 1915-01-08 | Johnny Kirk | WWLLWL | Palisades Rink, McKeesport | LOST |
| 1914-12-25 | Tommy Levine | LDWDDL | Washington | DRAW |
| 1914-12-22 | Tommy Levine | LLDWDD | Oakland Natatorium, Pittsburgh | WIN |
| 1914-12-12 | Dido Berri | debut | Washington | LOST |
| 1914-11-19 | Chalky Wimler | debut | Charleroi | LOST |
| 1914-10-03 | Johnny Ray | DLLWWW | Southside Market House, Pittsburgh | LOST Technical knockout |
| 1914-07-20 | Tommy Cloonan | D | Waldemeier Hall, Pittsburgh | WIN |
| 1914-05-25 | Art Dougherty | debut | Southside Market House, Pittsburgh | WIN |