Ratings 
  
  | Year       | 
  Rank   | 
   Edo    | 
  Dev.   | 
  Games  | 
 
  | 1904  | 
  274  | 
  2240 |  (73) |   4 | 
 
  | 1905  | 
  248  | 
  2262 |  (66) |   0 | 
 
  | 1906  | 
  211  | 
  2283 |  (55) |   0 | 
 
  | 1907  | 
  175  | 
  2304 |  (37) |   45 | 
 
  | 1908  | 
  184  | 
  2303 |  (40) |   17 | 
 
  | 1909  | 
  206  | 
  2299 |  (45) |   11 | 
 
  | 1910  | 
  226  | 
  2281 |  (51) |   11 | 
 
  | 1911  | 
  239  | 
  2282 |  (64) |   0 | 
 
  | 1912  | 
  224  | 
  2282 |  (72) |   0 | 
 
  | 1913  | 
  227  | 
  2283 |  (79) |   0 | 
 
  | 1914  | 
  220  | 
  2283 |  (83) |   0 | 
 
  | 1915  | 
  207  | 
  2284 |  (87) |   0 | 
 
  | 1916  | 
  200  | 
  2284 |  (89) |   0 | 
 
  | 1917  | 
  197  | 
  2285 |  (89) |   0 | 
 
  | 1918  | 
  195  | 
  2286 |  (89) |   0 | 
 
  | 1919  | 
  189  | 
  2286 |  (88) |   0 | 
 
  | 1920  | 
  206  | 
  2287 |  (85) |   0 | 
 
  | 1921  | 
  214  | 
  2287 |  (82) |   0 | 
 
  | 1922  | 
  221  | 
  2288 |  (76) |   0 | 
 
  | 1923  | 
  233  | 
  2288 |  (69) |   0 | 
 
  | 1924  | 
  241  | 
  2289 |  (59) |   10 | 
 
  | 1925  | 
  249  | 
  2288 |  (59) |   11 | 
 
  
Rating table notes
 
 | 
| Biographical data |  
   | Name: Krofta, Karl   | 
 
   | Born:  | 
 
   | Died:  | 
 
|   |  
   | Notes: | 
 
   | Národní Listy (21 Aug. 1904, p.10) has 'Krofka'. I am guessing that this is 'K. Krofta'. | 
 
  |  
|   |  
   | References | 
 
| Books |  
   |    Di Felice, Chess Results, 1901-1920, page 309 | 
 
   |    Di Felice, Chess Results, 1921-1930, page 328 | 
 
   |    Fiala, Olrich Duras, Vol.1, page 361 | 
 
   |    Thulin, Name index to CTC, page 141 | 
 
| Periodicals |  
   |    [Boh], 3 May 1908, page 25 | 
 
   |    [NL], vol. 44, no. 230, 21 Aug. 1904, page 10 | 
 
 
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