Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1907 |
942 |
1893 | (78) | 11 |
| 1908 |
941 |
1894 | (83) | 0 |
| 1909 |
1020 |
1896 | (87) | 0 |
| 1910 |
1009 |
1897 | (89) | 0 |
| 1911 |
1031 |
1899 | (90) | 0 |
| 1912 |
1007 |
1900 | (90) | 0 |
| 1913 |
1034 |
1902 | (90) | 0 |
| 1914 |
994 |
1903 | (88) | 0 |
| 1915 |
922 |
1905 | (84) | 0 |
| 1916 |
908 |
1906 | (80) | 0 |
| 1917 |
903 |
1908 | (74) | 0 |
| 1918 |
917 |
1909 | (65) | 12 |
| 1919 |
938 |
1904 | (67) | 0 |
| 1920 |
1042 |
1898 | (66) | 0 |
| 1921 |
1147 |
1892 | (62) | 9 |
| 1922 |
1186 |
1880 | (62) | 9 |
| 1923 |
1334 |
1873 | (69) | 0 |
| 1924 |
1360 |
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 |
| |
