Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1907 |
946 |
1909 | (78) | 11 |
| 1908 |
945 |
1910 | (83) | 0 |
| 1909 |
1026 |
1911 | (87) | 0 |
| 1910 |
1024 |
1912 | (89) | 0 |
| 1911 |
1042 |
1914 | (90) | 0 |
| 1912 |
1017 |
1915 | (90) | 0 |
| 1913 |
1049 |
1916 | (89) | 0 |
| 1914 |
1010 |
1917 | (87) | 0 |
| 1915 |
935 |
1918 | (84) | 0 |
| 1916 |
932 |
1920 | (80) | 0 |
| 1917 |
926 |
1921 | (73) | 0 |
| 1918 |
932 |
1922 | (65) | 12 |
| 1919 |
947 |
1916 | (67) | 0 |
| 1920 |
1053 |
1909 | (66) | 0 |
| 1921 |
1166 |
1902 | (61) | 9 |
| 1922 |
1214 |
1889 | (62) | 9 |
| 1923 |
1377 |
1883 | (69) | 0 |
| 1924 |
1396 |
1876 | (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 |
| |