Koyalovich, Boris




Ratings

Year       Rank    Edo    Dev.   Games 
1901  111  2346 (53) 11
1902  114  2344 (45) 14
1903  145  2319 (42) 13
1904  107  2356 (37) 33
1905  144  2332 (41) 14
1906  178  2312 (45) 11
1907  197  2305 (51) 7
1908  222  2298 (60) 0
1909  242  2291 (64) 0
1910  246  2284 (65) 0
1911  266  2277 (62) 0
1912  276  2270 (56) 9
1913  285  2268 (56) 9
1914  276  2263 (65) 0
1915  270  2258 (71) 0
1916  284  2253 (73) 0
1917  292  2248 (74) 0
1918  308  2243 (73) 0
1919  317  2238 (69) 0
1920  341  2234 (63) 0
1921  376  2229 (53) 11
1922  390  2227 (52) 2
1923  462  2220 (46) 19
1924  457  2226 (50) 0
1925  444  2232 (45) 22
1926  441  2241 (54) 0
1927  437  2249 (56) 0
1928  423  2258 (54) 14
1929  519  2230 (59) 9

Rating table notes

Biographical data
Name: Koyalovich, Boris Mikhailovich  
Born: 2 May 1867
Died: 29 Dec. 1941
 
Notes:
Feenstra Kuiper has name as 'Kojalowitsch'. The biography of Chigorin translated by Jimmy Adams gives date of death as 1942.
 
References
Books
   Adams, Mikhail Chigorin, page 85
   Di Felice, Chess Results, 1901-1920, page 309
   Di Felice, Chess Results, 1921-1930, page 328
   Gaige, Chess Personalia, page 226
   Skinner and Verhoeven, Alexander Alekhine's Chess Games, page 111
   Soltis, Soviet Chess, page 17, 27
   Thulin, Name index to CTC, page 138
Match data  (f=formal; c=casual; s=soft)

Marco, G. - Koyalovich, B.M. 1901         (c)     0.5   -   0.5
von Bardeleben, C.C.A. - Koyalovich, B.M. 1902         (c)     1   -   0

Tournament data

Saint Petersburg 1901 (2)     Saint Petersburg Tournament (2)     6.5  /  10
Saint Petersburg 1902 (1)     Saint Petersburg Tournament     9  /  13
Saint Petersburg 1903 (2)     Saint Petersburg Tournament     5  /  13
Saint Petersburg 1904 (1)     Saint Petersburg Tournament     6.5  /  11
Saint Petersburg 1904 (2)     Saint Petersburg Tournament     10  /  14
Saint Petersburg 1904 (5)     Saint Petersburg Tournament     6  /  8
Saint Petersburg 1905 (1)     Rice Gambit Tournament     7  /  14
Saint Petersburg 1906 (2)     Saint Petersburg Tournament     4.5  /  11
Saint Petersburg 1907 (1)     Saint Petersburg Tournament     4  /  8
Saint Petersburg 1911 (1)     Saint Petersburg - Moscow Match    
  Koyalovich, B.M. - Parfenov, E.G.     1 - 0    
Saint Petersburg 1912 (2)     Saint Petersburg 1st Category Tournament     3.5  /  9
Saint Petersburg 1913 (4)     Saint Petersburg Tournament     4.5  /  9
Petrograd 1921     Petrograd Tournament     5.5  /  11
Petrograd 1922 (2)     Petrograd - Moscow Match    
  Koyalovich, B.M. - Kliatskin, M.G.     1 - 1    
Novgorod 1923     Novgorod Tournament     2  /  7
Petrograd 1923 (6)     Petrograd National Winter Tournament     5.5  /  12
Leningrad 1925 (1)     Leningrad Tournament     3.5  /  9
Leningrad 1925 (3)     Leningrad Tournament     5.5  /  13
Leningrad 1928 (5)     Rabpros Trade Union Championshp     9.5  /  14
Leningrad 1929 (3)     7th Leningrad City Championship - Preliminary Section A     2.5  /  9

Player information updated: 24 Feb. 2026