Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1901 |
946 |
1858 | (75) | 10 |
| 1902 |
932 |
1867 | (73) | 0 |
| 1903 |
913 |
1876 | (68) | 0 |
| 1904 |
933 |
1886 | (59) | 26 |
| 1905 |
961 |
1894 | (65) | 0 |
| 1906 |
933 |
1902 | (68) | 7 |
| 1907 |
933 |
1924 | (74) | 0 |
| 1908 |
910 |
1945 | (77) | 0 |
| 1909 |
953 |
1967 | (79) | 8 |
Rating table notes
|
| Biographical data |
| Name: Valk, G. |
| Born: |
| Died: |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1901-1920, page 319 |
| Thulin, Name index to CTC, page 282 |
| |
