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| Given Name: | William Eckloof |
| Birth Date: | 1853-3-20 |
| Birth City: | Washington |
| Birth Country: | |
| Height: | 0 cm |
| Weight: | 0 kg |
| Bats: | Switch |
| Throws: | Right |
| Age: | 45(Deceased) |
| Teams and Years | Batting Average | Hits | At Bats | Home Runs | Runs Batted In | Wins | Losses | Games Pitched In | Strikeouts | Shutouts | Position | Errors | Double Plays | Assists |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1871 Washington Olympics | 0.000 | 0 | 9 | 0 | 1 | 2 | 0 | 2 | 0 | 0 | P | 1 | 0 | 5 |
| 1872 Washington Nationals | 0.267 | 12 | 45 | 0 | 4 | 0 | 11 | 11 | 2 | 0 | P | 7 | 0 | 12 |
| 1873 Washington Blue Legs | 0.180 | 24 | 133 | 0 | 8 | 7 | 25 | 32 | 4 | 0 | P | 16 | 1 | 27 |
| 1874 Hartford Dark Blues | 0.159 | 21 | 132 | 0 | 9 | 2 | 14 | 22 | 14 | 0 | OF | 7 | 0 | 0 |
| 1874 Hartford Dark Blues | 0.159 | 21 | 132 | 0 | 9 | 2 | 14 | 22 | 14 | 0 | P | 20 | 1 | 20 |
| 1875 Washington Nationals | 0.256 | 20 | 78 | 0 | 7 | 1 | 14 | 17 | 15 | 0 | OF | 5 | 1 | 1 |
| 1875 Washington Nationals | 0.256 | 20 | 78 | 0 | 7 | 1 | 14 | 17 | 15 | 0 | P | 16 | 0 | 19 |