Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1920 |
286 |
2246 | (64) | 7 |
| 1921 |
221 |
2286 | (59) | 0 |
| 1922 |
147 |
2327 | (49) | 9 |
| 1923 |
135 |
2338 | (41) | 18 |
| 1924 |
132 |
2341 | (38) | 22 |
| 1925 |
178 |
2322 | (41) | 11 |
| 1926 |
129 |
2352 | (42) | 11 |
| 1927 |
130 |
2358 | (41) | 15 |
| 1928 |
189 |
2339 | (46) | 11 |
| 1929 |
204 |
2334 | (52) | 0 |
| 1930 |
218 |
2330 | (51) | 0 |
| 1931 |
233 |
2325 | (43) | 24 |
| 1932 |
306 |
2294 | (52) | 11 |
Rating table notes
|
| Biographical data |
| Name: Zimmermann, Otto |
| Born: 11 Sep. 1892 |
| Died: 24 July 1979 |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1901-1920, page 274 |
| Di Felice, Chess Results, 1921-1930, page 342 |
| Di Felice, Chess Results, 1931-1935, page 410 |
| Gaige, Chess Personalia, page 479 |
| Skinner and Verhoeven, Alexander Alekhine's Chess Games, page 143, 253 |
| Thulin, Name index to CTC, page 306 |
| |