| Ratings 
 
 
  | Year | Rank | Edo | Dev. | Games |  
  | 1913 | 405 | 2203 | (77) | 10 |  
  | 1914 | 356 | 2213 | (83) | 0 |  
  | 1915 | 311 | 2223 | (87) | 0 |  
  | 1916 | 296 | 2233 | (90) | 0 |  
  | 1917 | 271 | 2244 | (92) | 0 |  
  | 1918 | 257 | 2254 | (93) | 0 |  
  | 1919 | 241 | 2264 | (92) | 0 |  
  | 1920 | 228 | 2274 | (91) | 0 |  
  | 1921 | 224 | 2284 | (89) | 0 |  
  | 1922 | 205 | 2294 | (86) | 0 |  
  | 1923 | 196 | 2305 | (82) | 0 |  
  | 1924 | 183 | 2315 | (76) | 7 |  
  | 1925 | 197 | 2315 | (80) | 0 |  
  | 1926 | 202 | 2315 | (83) | 2 |  
  | 1927 | 233 | 2307 | (88) | 2 |  
 
Rating table notes
 | 
| Biographical data |  | 
   | Name: Olson, Karl |  | Also known as: K. Olsson |  
   | Born: 1888 |  
   | Died: |  |  |  |  
   | References |  | 
| Books |  
   | Di Felice, Chess Results, 1901-1920, page 203 |  
   | Di Felice, Chess Results, 1921-1930, page 86 |  
   | Gaige, Chess Personalia, page 311 |  
   | Thulin, Name index to CTC, page 194 |  | Periodicals |  
   | [TFS], vol. 19, no. 11, Nov. 1913, page 199 |  |  |