Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1907 |
926 |
1893 | (78) | 11 |
| 1908 |
927 |
1895 | (83) | 0 |
| 1909 |
1005 |
1896 | (87) | 0 |
| 1910 |
998 |
1898 | (89) | 0 |
| 1911 |
1019 |
1900 | (90) | 0 |
| 1912 |
992 |
1901 | (91) | 0 |
| 1913 |
1012 |
1903 | (90) | 0 |
| 1914 |
950 |
1905 | (88) | 0 |
| 1915 |
893 |
1906 | (85) | 0 |
| 1916 |
878 |
1908 | (80) | 0 |
| 1917 |
870 |
1910 | (74) | 0 |
| 1918 |
880 |
1911 | (65) | 12 |
| 1919 |
901 |
1905 | (67) | 0 |
| 1920 |
1000 |
1899 | (66) | 0 |
| 1921 |
1087 |
1893 | (62) | 9 |
| 1922 |
1123 |
1880 | (62) | 9 |
| 1923 |
1255 |
1873 | (69) | 0 |
| 1924 |
1310 |
1866 | (73) | 8 |
Rating table notes
|
| Biographical data |
| Name: van Kooy, W. |
| Born: |
| Died: |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1901-1920, page 319 |
| Di Felice, Chess Results, 1921-1930, page 340 |
| Thulin, Name index to CTC, page 137 |
| |
