Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1927 |
191 |
2307 | (66) | 6 |
| 1928 |
129 |
2340 | (60) | 14 |
Rating table notes
|
| Biographical data |
| Name: Wertheim, Willem Fredrik |
| Born: 16 Nov. 1907 |
| Died: |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1921-1930, page 341 |
| Gaige, Chess Personalia, page 461 |
| Thulin, Name index to CTC, page 296 |
| |
