| JOHN O’BRIEN | Born: Nov 4, 1888 | Died: | Dec 9, 1967 | ||||||||||
| John Jeremiah O’Brien | College: St,John’s(NY) | Hometown: | Brooklyn, NY | ||||||||||
| Regular Season | Playoffs | ||||||||||||
| Season | Team | Lg | C/Y | G | Wins | Loss | % | Finish | G | Wins | Loss | % | Finish |
| 1921-22 | Brooklyn Pros | MBL | 20 | 11 | 9 | .550 | 3 | ||||||
| 1922-23 | Brooklyn Pros | MBL | 42 | 23 | 19 | .548 | 5 1hf 2 2hf | 3 | 1 | 2 | .333 | Lost Finals | |
| Major League Totals | 62 | 34 | 28 | .548 | |||||||||