| Ratings 
 
 
  | Year | Rank | Edo | Dev. | Games |  
  | 1914 | 782 | 2037 | (63) | 29 |  
  | 1915 | 706 | 2047 | (69) | 0 |  
  | 1916 | 681 | 2056 | (72) | 0 |  
  | 1917 | 660 | 2066 | (72) | 0 |  
  | 1918 | 652 | 2075 | (71) | 0 |  
  | 1919 | 640 | 2085 | (66) | 6 |  
  | 1920 | 688 | 2088 | (68) | 0 |  
  | 1921 | 730 | 2091 | (66) | 1 |  
  | 1922 | 760 | 2088 | (63) | 0 |  
  | 1923 | 851 | 2084 | (56) | 10 |  
  | 1924 | 936 | 2066 | (55) | 19 |  
 
Rating table notes
 | 
| Biographical data |  | 
   | Name: de Villegas, Fernando |  
   | Born: |  
   | Died: |  |  |  |  
   | References |  | 
| Books |  
   | Di Felice, Chess Results, 1901-1920, page 252 |  
   | Di Felice, Chess Results, 1921-1930, page 321 |  
   | Skinner and Verhoeven, Alexander Alekhine's Chess Games, page 162 |  
   | Thulin, Name index to CTC, page 285 |  |  |