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| Name | Given Name | Age | Birthday | Height | Weight | Birth City | Birth Country | Batting Hand | Throwing Hand |
|---|---|---|---|---|---|---|---|---|---|
| Buck O'Brien | Thomas Joseph | 77 Deceased | 05/09/1882 | 6'10" | 188 lbs | Brockton | R | R |
| Year | Team | Games | At Bats | Hits | Home Runs | RBI | Batting AVG | Wins | Losses | Strikeouts | Shutouts | Position | Errors | Double Plays | Assists |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1911 | Boston Red Sox | 6 | 16 | 2 | 0 | 1 | 0.1250 | 5 | 1 | 31 | 2 | Pitcher | 0 | 1 | 14 |
| 1912 | Boston Red Sox | 37 | 94 | 13 | 0 | 6 | 0.1383 | 20 | 13 | 115 | 2 | Pitcher | 5 | 1 | 83 |
| 1913 | Boston Red Sox | 15 | 30 | 5 | 0 | 1 | 0.1667 | 4 | 9 | 54 | 0 | Pitcher | 0 | 0 | 29 |
| 1913 | Chicago White Sox | 6 | 3 | 0 | 0 | 0 | 0.0000 | 0 | 2 | 4 | 0 | Pitcher | 0 | 0 | 4 |