Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1917 |
68 |
2373 | (53) | 16 |
| 1918 |
70 |
2369 | (51) | 7 |
| 1919 |
108 |
2332 | (49) | 5 |
| 1920 |
154 |
2313 | (45) | 15 |
| 1921 |
152 |
2316 | (49) | 0 |
| 1922 |
142 |
2320 | (43) | 19 |
| 1923 |
174 |
2303 | (47) | 6 |
| 1924 |
160 |
2315 | (46) | 17 |
| 1925 |
131 |
2333 | (52) | 0 |
| 1926 |
114 |
2351 | (50) | 12 |
| 1927 |
81 |
2364 | (51) | 16 |
Rating table notes
|
| Biographical data |
| Name: Berndtsson-Kullberg, Karl Mathias |
| Also known as: K. Berndtsson |
| Born: 16 Mar. 1892 |
| Died: 29 Sep. 1943 |
| |
| Notes: |
| Gaige gives full name as 'Berndtsson-Kullberg, Karl [Mathias]' suggesting that the second name is uncertain. |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1901-1920, page 300 |
| Di Felice, Chess Results, 1921-1930, page 319 |
| Gaige, Chess Personalia, page 34 |
| Thulin, Name index to CTC, page 26 |
| |
