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| First Name | Last Name | Given Name | Birth Year | Birth Month | Birth Day | Birth City | Birth Country | Height | Weight | Age | Bats | Throws |
| Duff | Cooley | Duff Gordon | 1873 | 3 | 29 | Leavenworth | USA | 71 | 158 | 64 | L | R |
| Year | Team | AB | HR | RBI | BA |
|---|---|---|---|---|---|
| 1893 | St. Louis Browns | 107 | 0 | 21 | 0.3458 |
| 1894 | St. Louis Browns | 206 | 1 | 21 | 0.2961 |
| 1895 | St. Louis Browns | 563 | 7 | 75 | 0.3393 |
| 1896 | Philadelphia Phillies | 287 | 2 | 22 | 0.3066 |
| 1896 | St. Louis Browns | 166 | 0 | 13 | 0.3072 |
| 1897 | Philadelphia Phillies | 566 | 4 | 40 | 0.3286 |
| 1898 | Philadelphia Phillies | 629 | 4 | 55 | 0.3116 |
| 1899 | Philadelphia Phillies | 406 | 1 | 31 | 0.2759 |
| 1900 | Pittsburgh Pirates | 249 | 0 | 22 | 0.2008 |
| 1901 | Boston Beaneaters | 240 | 0 | 27 | 0.2583 |
| 1902 | Boston Beaneaters | 548 | 0 | 58 | 0.2956 |
| 1903 | Boston Beaneaters | 553 | 1 | 70 | 0.2893 |
| 1904 | Boston Beaneaters | 467 | 5 | 70 | 0.2719 |
| 1905 | Detroit Tigers | 377 | 1 | 32 | 0.2467 |
| Year | Team | W | L | G | SHO |
|---|---|---|---|---|---|
| 1893 | St. Louis Browns | 0 | 0 | 0 | 0 |
| 1894 | St. Louis Browns | 0 | 0 | 0 | 0 |
| 1895 | St. Louis Browns | 0 | 0 | 0 | 0 |
| 1896 | Philadelphia Phillies | 0 | 0 | 0 | 0 |
| 1896 | St. Louis Browns | 0 | 0 | 0 | 0 |
| 1897 | Philadelphia Phillies | 0 | 0 | 0 | 0 |
| 1898 | Philadelphia Phillies | 0 | 0 | 0 | 0 |
| 1899 | Philadelphia Phillies | 0 | 0 | 0 | 0 |
| 1900 | Pittsburgh Pirates | 0 | 0 | 0 | 0 |
| 1901 | Boston Beaneaters | 0 | 0 | 0 | 0 |
| 1902 | Boston Beaneaters | 0 | 0 | 0 | 0 |
| 1903 | Boston Beaneaters | 0 | 0 | 0 | 0 |
| 1904 | Boston Beaneaters | 0 | 0 | 0 | 0 |
| 1905 | Detroit Tigers | 0 | 0 | 0 | 0 |
| Year | Team | POS | E | DP | A |
|---|---|---|---|---|---|
| 1893 | St. Louis Browns | C | 1 | 0 | 6 |
| 1893 | St. Louis Browns | OF | 1 | 0 | 1 |
| 1893 | St. Louis Browns | SS | 2 | 2 | 5 |
| 1894 | St. Louis Browns | 1B | 0 | 1 | 0 |
| 1894 | St. Louis Browns | 3B | 12 | 1 | 21 |
| 1894 | St. Louis Browns | OF | 15 | 1 | 1 |
| 1894 | St. Louis Browns | SS | 0 | 0 | 0 |
| 1895 | St. Louis Browns | 3B | 1 | 2 | 10 |
| 1895 | St. Louis Browns | C | 1 | 0 | 1 |
| 1895 | St. Louis Browns | OF | 23 | 1 | 17 |
| 1895 | St. Louis Browns | SS | 4 | 0 | 10 |
| 1896 | Philadelphia Phillies | OF | 15 | 2 | 6 |
| 1896 | St. Louis Browns | OF | 4 | 0 | 2 |
| 1897 | Philadelphia Phillies | 1B | 0 | 1 | 0 |
| 1897 | Philadelphia Phillies | OF | 14 | 6 | 16 |
| 1898 | Philadelphia Phillies | OF | 22 | 2 | 15 |
| 1899 | Philadelphia Phillies | 1B | 24 | 56 | 34 |
| 1899 | Philadelphia Phillies | 2B | 2 | 0 | 0 |
| 1899 | Philadelphia Phillies | OF | 2 | 0 | 0 |
| 1900 | Pittsburgh Pirates | 1B | 8 | 39 | 20 |
| 1901 | Boston Beaneaters | 1B | 1 | 3 | 4 |
| 1901 | Boston Beaneaters | OF | 8 | 1 | 5 |
| 1902 | Boston Beaneaters | 1B | 1 | 1 | 6 |
| 1902 | Boston Beaneaters | OF | 13 | 2 | 7 |
| 1903 | Boston Beaneaters | 1B | 6 | 2 | 3 |
| 1903 | Boston Beaneaters | OF | 13 | 4 | 11 |
| 1904 | Boston Beaneaters | 1B | 1 | 0 | 0 |
| 1904 | Boston Beaneaters | OF | 5 | 4 | 3 |
| 1905 | Detroit Tigers | OF | 10 | 5 | 12 |