Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1907 |
927 |
1895 | (78) | 11 |
| 1908 |
933 |
1897 | (83) | 0 |
| 1909 |
1015 |
1898 | (87) | 0 |
| 1910 |
1006 |
1900 | (89) | 0 |
| 1911 |
1029 |
1902 | (90) | 0 |
| 1912 |
1003 |
1904 | (91) | 0 |
| 1913 |
1027 |
1905 | (90) | 0 |
| 1914 |
990 |
1907 | (88) | 0 |
| 1915 |
916 |
1909 | (85) | 0 |
| 1916 |
900 |
1911 | (80) | 0 |
| 1917 |
896 |
1912 | (74) | 0 |
| 1918 |
912 |
1914 | (65) | 12 |
| 1919 |
932 |
1908 | (67) | 0 |
| 1920 |
1035 |
1902 | (66) | 0 |
| 1921 |
1135 |
1895 | (62) | 9 |
| 1922 |
1163 |
1883 | (62) | 9 |
| 1923 |
1306 |
1876 | (69) | 0 |
| 1924 |
1335 |
1868 | (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 |
| |
