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Full Name: Jack O'Brien
Birth Date: 2/5/1873
Birth City: Watervliet
Height: 73 inches
Weight: 165 lbs
Bats: Left
Throws: Right
Age: 60
| Year | Team | Hits | At Bats | Home Runs | RBI | Batting Average |
|---|---|---|---|---|---|---|
| 1899 | WAS | 132 | 468 | 6 | 51 | 0.282 |
| 1901 | WS1 | 8 | 45 | 0 | 5 | 0.178 |
| 1901 | CLE | 106 | 375 | 0 | 39 | 0.283 |
| 1903 | BOS | 71 | 338 | 3 | 38 | 0.210 |
| Year | Team | Wins | Losses | Games | Strikeouts | Shutouts |
|---|
| Year | Team | Position | Errors | Double Plays | Assists |
|---|---|---|---|---|---|
| 1899 | WAS | 3B | 6 | 1 | 10 |
| 1899 | WAS | OF | 23 | 5 | 21 |
| 1901 | WS1 | OF | 2 | 0 | 0 |
| 1901 | CLE | 3B | 0 | 0 | 2 |
| 1901 | CLE | OF | 10 | 4 | 9 |
| 1903 | BOS | 2B | 4 | 0 | 7 |
| 1903 | BOS | 3B | 3 | 3 | 15 |
| 1903 | BOS | OF | 6 | 2 | 9 |
| 1903 | BOS | SS | 0 | 0 | 0 |