Koyalovich, Boris




Ratings

Year       Rank    Edo    Dev.   Games 
1901  112  2342 (53) 11
1902  114  2339 (45) 14
1903  146  2315 (42) 13
1904  108  2351 (37) 33
1905  144  2327 (41) 14
1906  178  2307 (45) 11
1907  199  2300 (51) 7
1908  221  2293 (60) 0
1909  241  2286 (64) 0
1910  243  2279 (65) 0
1911  264  2272 (62) 0
1912  273  2265 (56) 9
1913  285  2263 (56) 9
1914  275  2258 (65) 0
1915  269  2253 (71) 0
1916  284  2248 (73) 0
1917  292  2243 (74) 0
1918  309  2238 (73) 0
1919  318  2233 (69) 0
1920  340  2229 (63) 0
1921  376  2224 (53) 11
1922  389  2222 (52) 2
1923  461  2215 (46) 19
1924  457  2221 (50) 0
1925  445  2227 (45) 22
1926  441  2236 (54) 0
1927  438  2244 (56) 0
1928  424  2253 (54) 14
1929  521  2225 (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