Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1917 |
69 |
2375 | (53) | 16 |
| 1918 |
71 |
2371 | (50) | 7 |
| 1919 |
111 |
2334 | (49) | 5 |
| 1920 |
157 |
2315 | (45) | 15 |
| 1921 |
155 |
2318 | (49) | 0 |
| 1922 |
147 |
2321 | (43) | 19 |
| 1923 |
185 |
2304 | (46) | 6 |
| 1924 |
169 |
2317 | (45) | 17 |
| 1925 |
125 |
2338 | (51) | 0 |
| 1926 |
107 |
2358 | (48) | 12 |
| 1927 |
88 |
2379 | (46) | 16 |
| 1928 |
82 |
2379 | (56) | 9 |
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 |
| |
