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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 |
| Bob | Groom | Robert | 1884 | 9 | 12 | Belleville | USA | 74 | 175 | 63 | R | R |
| Year | Team | AB | HR | RBI | BA |
|---|---|---|---|---|---|
| 1909 | Washington Senators | 88 | 0 | 2 | 0.0909 |
| 1910 | Washington Senators | 92 | 0 | 4 | 0.1196 |
| 1911 | Washington Senators | 82 | 0 | 2 | 0.1341 |
| 1912 | Washington Senators | 103 | 0 | 6 | 0.1165 |
| 1913 | Washington Senators | 92 | 0 | 8 | 0.1630 |
| 1914 | St. Louis Terriers | 94 | 0 | 4 | 0.1596 |
| 1915 | St. Louis Terriers | 66 | 0 | 4 | 0.1515 |
| 1916 | St. Louis Browns | 63 | 0 | 3 | 0.1111 |
| 1917 | St. Louis Browns | 72 | 0 | 2 | 0.1111 |
| 1918 | Cleveland Indians | 12 | 0 | 0 | 0.0833 |
| Year | Team | W | L | G | SHO |
|---|---|---|---|---|---|
| 1909 | Washington Senators | 7 | 26 | 44 | 1 |
| 1910 | Washington Senators | 12 | 17 | 34 | 3 |
| 1911 | Washington Senators | 13 | 17 | 37 | 2 |
| 1912 | Washington Senators | 24 | 13 | 43 | 2 |
| 1913 | Washington Senators | 16 | 16 | 37 | 4 |
| 1914 | St. Louis Terriers | 13 | 20 | 42 | 1 |
| 1915 | St. Louis Terriers | 11 | 11 | 37 | 4 |
| 1916 | St. Louis Browns | 13 | 9 | 41 | 1 |
| 1917 | St. Louis Browns | 8 | 19 | 38 | 4 |
| 1918 | Cleveland Indians | 2 | 2 | 14 | 0 |
| Year | Team | POS | E | DP | A |
|---|---|---|---|---|---|
| 1909 | Washington Senators | OF | 1 | 0 | 0 |
| 1909 | Washington Senators | P | 12 | 3 | 98 |
| 1910 | Washington Senators | P | 6 | 0 | 77 |
| 1911 | Washington Senators | P | 5 | 0 | 73 |
| 1912 | Washington Senators | P | 9 | 2 | 77 |
| 1913 | Washington Senators | P | 5 | 3 | 78 |
| 1914 | St. Louis Terriers | P | 6 | 3 | 74 |
| 1915 | St. Louis Terriers | P | 2 | 2 | 63 |
| 1916 | St. Louis Browns | P | 6 | 2 | 72 |
| 1917 | St. Louis Browns | P | 1 | 3 | 59 |
| 1918 | Cleveland Indians | P | 0 | 0 | 14 |