Jack O'Brien
Baseball Reference Page
| Team | Year | Pos | AB | R | H | HR | RBI | AVG | RC | Def RP | Tot | RPG |
| WAS | 1899 | LF | 468 | 68 | 132 | 6 | 51 | 0.282 | 27.0 | -6.5 | 20.6 | 0.176 |
| WS1 | 1901 | LF | 45 | 5 | 8 | 0 | 5 | 0.178 | -1.0 | 1.1 | 0.1 | 0.007 |
| CLE | 1901 | RF | 375 | 54 | 106 | 0 | 39 | 0.283 | 22.5 | -9.0 | 13.6 | 0.149 |
| BOS | 1903 | CF | 338 | 44 | 71 | 3 | 38 | 0.210 | 13.0 | -17.7 | -4.7 | -0.050 |