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| Name | Duke Esper |
| Given Name | Charles H. |
| Birth Date | 1867-7-28 |
| Birth City | Salem, NJ |
| Height | 5'11" |
| Weight | 185 lbs. |
| Pitching Hand | Left |
| Alive | No |
| Age | 43 |
| Year | Team | Hits | At Bats | Home Runs | Runs Batted | Batting Average | Wins | Losses | # of Pitching Games | Strikeouts | # of Shutouts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1890 | Philadelphia Athletics | 18 | 61 | 0 | 11 | 0.295082 | 8 | 9 | 18 | 61 | 1 |
| 1890 | Philadelphia Athletics | 18 | 61 | 0 | 11 | 0.295082 | 0 | 2 | 2 | 9 | 0 |
| 1890 | Philadelphia Athletics | 18 | 61 | 0 | 11 | 0.295082 | 5 | 0 | 5 | 18 | 0 |
| 1890 | Philadelphia Athletics | 1 | 7 | 0 | 0 | 0.142857 | 8 | 9 | 18 | 61 | 1 |
| 1890 | Philadelphia Athletics | 1 | 7 | 0 | 0 | 0.142857 | 0 | 2 | 2 | 9 | 0 |
| 1890 | Philadelphia Athletics | 1 | 7 | 0 | 0 | 0.142857 | 5 | 0 | 5 | 18 | 0 |
| 1890 | Philadelphia Athletics | 3 | 19 | 0 | 2 | 0.157895 | 8 | 9 | 18 | 61 | 1 |
| 1890 | Philadelphia Athletics | 3 | 19 | 0 | 2 | 0.157895 | 0 | 2 | 2 | 9 | 0 |
| 1890 | Philadelphia Athletics | 3 | 19 | 0 | 2 | 0.157895 | 5 | 0 | 5 | 18 | 0 |
| 1890 | Philadelphia Phillies | 18 | 61 | 0 | 11 | 0.295082 | 8 | 9 | 18 | 61 | 1 |
| 1890 | Philadelphia Phillies | 18 | 61 | 0 | 11 | 0.295082 | 0 | 2 | 2 | 9 | 0 |
| 1890 | Philadelphia Phillies | 18 | 61 | 0 | 11 | 0.295082 | 5 | 0 | 5 | 18 | 0 |
| 1890 | Philadelphia Phillies | 1 | 7 | 0 | 0 | 0.142857 | 8 | 9 | 18 | 61 | 1 |
| 1890 | Philadelphia Phillies | 1 | 7 | 0 | 0 | 0.142857 | 0 | 2 | 2 | 9 | 0 |
| 1890 | Philadelphia Phillies | 1 | 7 | 0 | 0 | 0.142857 | 5 | 0 | 5 | 18 | 0 |
| 1890 | Philadelphia Phillies | 3 | 19 | 0 | 2 | 0.157895 | 8 | 9 | 18 | 61 | 1 |
| 1890 | Philadelphia Phillies | 3 | 19 | 0 | 2 | 0.157895 | 0 | 2 | 2 | 9 | 0 |
| 1890 | Philadelphia Phillies | 3 | 19 | 0 | 2 | 0.157895 | 5 | 0 | 5 | 18 | 0 |
| 1890 | Pittsburg Alleghenys | 18 | 61 | 0 | 11 | 0.295082 | 8 | 9 | 18 | 61 | 1 |
| 1890 | Pittsburg Alleghenys | 18 | 61 | 0 | 11 | 0.295082 | 0 | 2 | 2 | 9 | 0 |
| 1890 | Pittsburg Alleghenys | 18 | 61 | 0 | 11 | 0.295082 | 5 | 0 | 5 | 18 | 0 |
| 1890 | Pittsburg Alleghenys | 1 | 7 | 0 | 0 | 0.142857 | 8 | 9 | 18 | 61 | 1 |
| 1890 | Pittsburg Alleghenys | 1 | 7 | 0 | 0 | 0.142857 | 0 | 2 | 2 | 9 | 0 |
| 1890 | Pittsburg Alleghenys | 1 | 7 | 0 | 0 | 0.142857 | 5 | 0 | 5 | 18 | 0 |
| 1890 | Pittsburg Alleghenys | 3 | 19 | 0 | 2 | 0.157895 | 8 | 9 | 18 | 61 | 1 |
| 1890 | Pittsburg Alleghenys | 3 | 19 | 0 | 2 | 0.157895 | 0 | 2 | 2 | 9 | 0 |
| 1890 | Pittsburg Alleghenys | 3 | 19 | 0 | 2 | 0.157895 | 5 | 0 | 5 | 18 | 0 |
| 1891 | Philadelphia Phillies | 27 | 123 | 0 | 9 | 0.219512 | 20 | 15 | 39 | 108 | 1 |
| 1892 | Philadelphia Phillies | 17 | 70 | 1 | 11 | 0.242857 | 11 | 6 | 21 | 45 | 0 |
| 1892 | Philadelphia Phillies | 17 | 70 | 1 | 11 | 0.242857 | 2 | 0 | 3 | 5 | 0 |
| 1892 | Philadelphia Phillies | 0 | 9 | 0 | 1 | 0 | 11 | 6 | 21 | 45 | 0 |
| 1892 | Philadelphia Phillies | 0 | 9 | 0 | 1 | 0 | 2 | 0 | 3 | 5 | 0 |
| 1892 | Pittsburgh Pirates | 17 | 70 | 1 | 11 | 0.242857 | 11 | 6 | 21 | 45 | 0 |
| 1892 | Pittsburgh Pirates | 17 | 70 | 1 | 11 | 0.242857 | 2 | 0 | 3 | 5 | 0 |
| 1892 | Pittsburgh Pirates | 0 | 9 | 0 | 1 | 0 | 11 | 6 | 21 | 45 | 0 |
| 1892 | Pittsburgh Pirates | 0 | 9 | 0 | 1 | 0 | 2 | 0 | 3 | 5 | 0 |
| 1893 | Washington Senators | 41 | 143 | 0 | 24 | 0.286713 | 12 | 28 | 42 | 78 | 0 |
| 1894 | Baltimore Orioles | 14 | 54 | 1 | 4 | 0.259259 | 5 | 10 | 18 | 24 | 0 |
| 1894 | Baltimore Orioles | 14 | 54 | 1 | 4 | 0.259259 | 10 | 2 | 16 | 25 | 0 |
| 1894 | Baltimore Orioles | 10 | 45 | 0 | 6 | 0.222222 | 5 | 10 | 18 | 24 | 0 |
| 1894 | Baltimore Orioles | 10 | 45 | 0 | 6 | 0.222222 | 10 | 2 | 16 | 25 | 0 |
| 1894 | Washington Senators | 14 | 54 | 1 | 4 | 0.259259 | 5 | 10 | 18 | 24 | 0 |
| 1894 | Washington Senators | 14 | 54 | 1 | 4 | 0.259259 | 10 | 2 | 16 | 25 | 0 |
| 1894 | Washington Senators | 10 | 45 | 0 | 6 | 0.222222 | 5 | 10 | 18 | 24 | 0 |
| 1894 | Washington Senators | 10 | 45 | 0 | 6 | 0.222222 | 10 | 2 | 16 | 25 | 0 |
| 1895 | Baltimore Orioles | 16 | 90 | 0 | 2 | 0.177778 | 10 | 12 | 34 | 39 | 1 |
| 1896 | Baltimore Orioles | 13 | 66 | 0 | 5 | 0.19697 | 14 | 5 | 20 | 19 | 1 |
| 1897 | St. Louis Browns | 8 | 25 | 0 | 3 | 0.32 | 1 | 6 | 8 | 8 | 0 |
| 1898 | St. Louis Browns | 10 | 27 | 0 | 5 | 0.37037 | 3 | 5 | 10 | 14 | 0 |
| Year | Position | Errors | Double Plays | Assists |
|---|---|---|---|---|
| 1890 | Pitcher | 2 | 2 | 34 |
| 1890 | Pitcher | 0 | 0 | 3 |
| 1890 | Pitcher | 1 | 1 | 9 |
| 1891 | Pitcher | 4 | 2 | 67 |
| 1892 | Outfielder | 0 | 0 | 1 |
| 1892 | Pitcher | 1 | 1 | 33 |
| 1892 | Pitcher | 0 | 0 | 3 |
| 1893 | Pitcher | 9 | 0 | 79 |
| 1894 | Outfielder | 0 | 0 | 0 |
| 1894 | Pitcher | 1 | 1 | 21 |
| 1894 | Pitcher | 0 | 1 | 21 |
| 1895 | Pitcher | 6 | 0 | 43 |
| 1896 | Pitcher | 1 | 0 | 32 |
| 1897 | Pitcher | 0 | 0 | 19 |
| 1898 | Pitcher | 1 | 0 | 17 |