| Ratings 
 
 
  | Year | Rank | Edo | Dev. | Games |  
  | 1943 | 986 | 1933 | (88) | 7 |  
  | 1944 | 980 | 1925 | (87) | 7 |  
 
Rating table notes
 | 
| Biographical data |  | 
   | Name: Leembruggen, C.J. |  
   | Born: |  
   | Died: |  |  |  |  
   | References |  | 
| Books |  
   | Di Felice, Chess Results, 1941-1946, page 349 |  
   | Skinner and Verhoeven, Alexander Alekhine's Chess Games, page 478 |  |  |