Koyalovich, Boris




Ratings

Year       Rank    Edo    Dev.   Games 
1901  112  2339 (53) 11
1902  115  2337 (45) 14
1903  150  2312 (42) 13
1904  109  2347 (37) 33
1905  149  2323 (41) 14
1906  183  2305 (45) 11
1907  197  2299 (51) 7
1908  222  2294 (60) 0
1909  235  2289 (64) 0
1910  237  2284 (65) 0
1911  252  2279 (62) 0
1912  259  2273 (55) 9
1913  274  2270 (56) 9
1914  267  2264 (65) 0
1915  263  2259 (70) 0
1916  273  2253 (73) 0
1917  283  2248 (74) 0
1918  299  2242 (73) 0
1919  314  2237 (69) 0
1920  337  2231 (63) 0
1921  371  2226 (53) 11
1922  390  2224 (52) 2
1923  450  2216 (46) 19
1924  449  2222 (50) 0
1925  441  2229 (45) 22
1926  440  2237 (54) 0
1927  433  2246 (56) 0
1928  421  2254 (54) 14
1929  515  2227 (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 (2)     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 (3)     Selection Tournament for the All-Russian 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