| Ratings 
 
 
  | Year | Rank | Edo | Dev. | Games |  
  | 1911 | 1243 | 1601 | (173) | 5 |  
 
Rating table notes
 | 
| Biographical data |  | 
   | Name: von Harff |  
   | Born: |  
   | Died: |  |  |  
   | Notes: |  
   | This may be the 'Dr. von Harf' of Dobel mentioned in the Deutsche Schachblätter of 4 June 1911 (p.306). |  |  |  |  
   | References |  | 
| Books |  
   | Di Felice, Chess Results, 1901-1920, page 153 |  
   | Gaige, Chess Tournament Crosstables III, page 358 |  | Periodicals |  
   | [DSB], vol. 2, no. 23, 4 June 1911, page 306 |  |  |