Mike Brennan (Port Costa Giant) boxer
- bouts
- 13
- won
- 1
- lost
- 8
- draw
- 2
- Status
- inactive
- Division
- heavyweight
- Debut
- 1887-08-31
- Height
- 5′ 9″/175cm
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1898-02-28 | Joe Butler | WWWLLL | Olympic A.C., Athens | NC No Contest |
| 1897-06-21 | Billy Dunn | WWDDLL | South Beach A.C., Staten Island | DRAW Points |
| 1895-03-04 | Billy Stift | WWW | Chicago | LOST Points |
| 1894-05-11 | Jim Daly | DWWWL | Buffalo | LOST Points |
| 1893-05-06 | Bob Fitzsimmons | WWWWWW | Boston | LOST KO |
| 1892-11-26 | C.C. Smith | LWLWL | New York A.C., New York | LOST |
| 1892-11-05 | C.C. Smith | WWLWL | New York | LOST KO |
| 1892-09-24 | Joe Goddard | WWDWW | Ariel A.C., Philadelphia | NC |
| 1890-12-03 | Jake Kilrain | WWWWWW | Montana | LOST Points |
| 1890-11-14 | Jack Burns | LWL | Jamaica, Queens | WIN Technical knockout |
| 1890-09-13 | Tom McCarthy | W | Knickerbocker Rink | DRAW Points |
| 1889-07-22 | Tommy Cleary | DLDWL | Willow Point, Port Townsend | LOST KO |
| 1887-08-31 | Joe McAuliffe | LWWWW | San Francisco | LOST KO |
