Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1920 |
1091 |
1857 | (99) | 5 |
| 1921 |
1190 |
1856 | (96) | 9 |
Rating table notes
|
| Biographical data |
| Name: van der Slacht, J. |
| Born: |
| Died: |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1921-1930, page 4 |
| Gaige, Chess Tournament Crosstables III, page 520 |
| |
