John O'Brien
Baseball Reference Page
| Team | Year | Pos | AB | R | H | HR | RBI | AVG | RC | Def RP | Tot | RPG |
| BRO | 1891 | 2B | 167 | 22 | 41 | 0 | 26 | 0.246 | 6.8 | -28.9 | -22.1 | -0.526 |
| CHN | 1893 | 2B | 14 | 3 | 5 | 0 | 1 | 0.357 | 1.9 | -2.5 | -0.6 | -0.197 |
| LS3 | 1895 | 2B | 539 | 82 | 138 | 1 | 50 | 0.256 | 3.2 | -9.2 | -6.1 | -0.043 |
| LS3 | 1896 | 2B | 186 | 24 | 63 | 2 | 24 | 0.339 | 14.6 | -2.4 | 12.1 | 0.294 |
| WAS | 1896 | 2B | 270 | 38 | 72 | 4 | 33 | 0.267 | 12.8 | 8.1 | 20.9 | 0.306 |
| WAS | 1897 | 2B | 320 | 37 | 78 | 3 | 45 | 0.244 | 6.1 | 6.7 | 12.8 | 0.156 |
| BLN | 1899 | 2B | 135 | 14 | 26 | 1 | 17 | 0.193 | 1.1 | 19.5 | 20.6 | 0.552 |
| PIT | 1899 | 2B | 279 | 26 | 63 | 1 | 33 | 0.226 | 4.3 | 17.7 | 22.0 | 0.292 |