| Ratings 
 
 
  | Year | Rank | Edo | Dev. | Games |  
  | 1921 | 900 | 2025 | (76) | 4 |  
  | 1922 | 898 | 2036 | (69) | 0 |  
  | 1923 | 969 | 2047 | (59) | 7 |  
  | 1924 | 952 | 2061 | (55) | 15 |  
  | 1925 | 1030 | 2045 | (65) | 0 |  
  | 1926 | 1149 | 2029 | (70) | 1 |  
  | 1927 | 1196 | 2022 | (76) | 5 |  
 
Rating table notes
 | 
| Biographical data |  | 
   | Name: Key, G. |  
   | Born: |  
   | Died: |  |  |  |  
   | References |  | 
| Books |  
   | Di Felice, Chess Results, 1921-1930, page 328 |  
   | Thulin, Name index to CTC, page 131 |  |  |