Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1930 |
536 |
2224 | (53) | 16 |
| 1931 |
584 |
2220 | (52) | 0 |
| 1932 |
600 |
2216 | (43) | 25 |
| 1933 |
728 |
2192 | (49) | 9 |
| 1934 |
799 |
2180 | (57) | 0 |
| 1935 |
892 |
2167 | (59) | 11 |
Rating table notes
|
| Biographical data |
| Name: Sjömark, Oskar |
| Born: |
| Died: |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1931-1935, page 403 |
| Holmgren, Gideon Ståhlberg, Vol.1, page 181 |
| Holmgren, Stockholms Schackförbund 1911-2011, page 96, 504, 505 |
| Skinner and Verhoeven, Alexander Alekhine's Chess Games, page 379 |
| |