Tom O'Brien
Pitching
Baseball Reference Page
| Team | Year | Pos | AB | R | H | HR | RBI | AVG | RC | Def RP | Tot | RPG |
| WOR | 1882 | LF | 89 | 9 | 18 | 0 | 7 | 0.202 | -5.4 | -5.4 | -10.8 | -0.456 |
| BL2 | 1883 | 2B | 138 | 16 | 37 | 0 | 0 | 0.268 | 6.8 | -14.9 | -8.1 | -0.241 |
| BSU | 1884 | 2B | 449 | 80 | 118 | 4 | | 0.263 | 31.9 | 0.4 | 32.3 | 0.293 |
| BL2 | 1885 | 1B | 33 | 4 | 7 | 0 | 5 | 0.212 | 0.4 | -0.2 | 0.2 | 0.023 |
| NY4 | 1887 | 1B | 129 | 13 | 25 | 0 | 18 | 0.194 | -5.1 | -3.3 | -8.4 | -0.244 |
| RC2 | 1890 | 1B | 273 | 36 | 52 | 0 | 31 | 0.190 | 3.7 | -9.7 | -6.0 | -0.081 |