Koyalovich, Boris




Ratings

Year       Rank    Edo    Dev.   Games 
1901  112  2341 (53) 11
1902  114  2339 (45) 14
1903  147  2314 (42) 13
1904  108  2350 (37) 33
1905  144  2327 (41) 14
1906  180  2307 (45) 11
1907  199  2299 (51) 7
1908  223  2292 (60) 0
1909  242  2285 (64) 0
1910  242  2278 (65) 0
1911  263  2271 (62) 0
1912  272  2264 (56) 9
1913  284  2262 (56) 9
1914  275  2257 (65) 0
1915  269  2252 (71) 0
1916  283  2247 (73) 0
1917  294  2242 (74) 0
1918  309  2237 (73) 0
1919  321  2232 (69) 0
1920  339  2227 (63) 0
1921  376  2222 (53) 11
1922  388  2220 (52) 2
1923  465  2213 (46) 19
1924  458  2219 (50) 0
1925  452  2225 (45) 22
1926  444  2234 (54) 0
1927  445  2242 (56) 0
1928  429  2250 (54) 14
1929  527  2223 (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