Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1901 |
114 |
2318 | (56) | 10 |
| 1902 |
107 |
2321 | (48) | 13 |
| 1903 |
131 |
2296 | (45) | 13 |
| 1904 |
99 |
2331 | (40) | 33 |
| 1905 |
134 |
2307 | (44) | 14 |
| 1906 |
152 |
2287 | (49) | 11 |
| 1907 |
162 |
2279 | (58) | 7 |
Rating table notes
|
| Biographical data |
| Name: Koyalovich, Boris Mikhailovich |
| Born: 2 May 1867 |
| Died: 29 Dec. 1941 |
| |
| Notes: |
| Feenstra Kuiper has name as 'Kojalowitsch'. |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1901-1920, page 309 |
| Gaige, Chess Personalia, page 226 |
| Thulin, Name index to CTC, page 138 |
| |