| Ratings 
 
 
  | Year | Rank | Edo | Dev. | Games |  
  | 1907 | 608 | 2087 | (77) | 6 |  
  | 1908 | 601 | 2093 | (76) | 0 |  
  | 1909 | 629 | 2099 | (73) | 0 |  
  | 1910 | 606 | 2105 | (67) | 0 |  
  | 1911 | 626 | 2111 | (58) | 15 |  
  | 1912 | 682 | 2078 | (60) | 0 |  
  | 1913 | 778 | 2044 | (58) | 14 |  
  | 1914 | 778 | 2039 | (68) | 0 |  
  | 1915 | 745 | 2033 | (76) | 0 |  
  | 1916 | 744 | 2027 | (81) | 0 |  
  | 1917 | 755 | 2021 | (85) | 0 |  
  | 1918 | 772 | 2015 | (87) | 0 |  
  | 1919 | 783 | 2009 | (88) | 0 |  
  | 1920 | 882 | 2003 | (88) | 0 |  
  | 1921 | 959 | 1997 | (87) | 0 |  
  | 1922 | 1011 | 1991 | (85) | 0 |  
  | 1923 | 1122 | 1985 | (81) | 0 |  
  | 1924 | 1164 | 1980 | (75) | 13 |  
 
Rating table notes
 | 
| Biographical data |  | 
   | Name: Grīntāls, K. |  | Also known as: K. Grünthal |  
   | Born: |  
   | Died: |  |  |  |  
   | References |  | 
| Books |  
   | Di Felice, Chess Results, 1901-1920, page 306 |  
   | Di Felice, Chess Results, 1921-1930, page 91 |  
   | Gaige, Chess Tournament Crosstables IV, page 643 |  
   | Thulin, Name index to CTC, page 96 |  | Periodicals |  
   | [DSZ], vol. 68, no. 6, June 1913, page 190 |  | Web |  
   | [6. Baltijas Šaha savienības kongress] |  
   | [K Grintals] |  |  |