Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1901 |
957 |
1837 | (75) | 10 |
| 1902 |
936 |
1846 | (73) | 0 |
| 1903 |
910 |
1855 | (68) | 0 |
| 1904 |
931 |
1864 | (60) | 26 |
| 1905 |
963 |
1872 | (66) | 0 |
| 1906 |
938 |
1880 | (68) | 7 |
| 1907 |
932 |
1901 | (74) | 0 |
| 1908 |
907 |
1922 | (78) | 0 |
| 1909 |
968 |
1942 | (80) | 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 |
| |
