| Ratings 
 
 
  | Year | Rank | Edo | Dev. | Games |  
  | 1937 | 1095 | 2099 | (55) | 17 |  
  | 1938 | 1033 | 2112 | (55) | 11 |  
  | 1939 | 954 | 2116 | (65) | 0 |  
  | 1940 | 851 | 2119 | (71) | 0 |  
  | 1941 | 803 | 2122 | (75) | 0 |  
  | 1942 | 733 | 2126 | (76) | 0 |  
  | 1943 | 672 | 2129 | (76) | 0 |  
  | 1944 | 646 | 2132 | (73) | 0 |  
  | 1945 | 673 | 2135 | (69) | 0 |  
  | 1946 | 657 | 2139 | (61) | 0 |  
  | 1947 | 493 | 2142 | (49) | 32 |  
 
Rating table notes
 | 
| Biographical data |  | 
   | Name: Ludwig, Paul Emil Gustav |  | Also known as: Dr. Ludwig |  
   | Born: 14 July 1909 |  
   | Died: 1 May 1954 |  |  |  |  
   | References |  | 
| Books |  
   | Di Felice, Chess Results, 1936-1940, page 363 |  
   | Di Felice, Chess Results, 1947-1950, page 468 |  
   | Gaige, Chess Personalia, page 257 |  | Periodicals |  
   | [DSB], vol. 26, no. 17, 1937, page 269 |  |  |