| Ratings 
 
 
  | Year | Rank | Edo | Dev. | Games |  
  | 1859 | 150 | 2159 | (105) | 4 |  
  | 1860 | 155 | 2164 | (103) | 4 |  
  | 1861 | 171 | 2147 | (109) | 0 |  
  | 1862 | 185 | 2129 | (114) | 0 |  
  | 1863 | 189 | 2112 | (118) | 1 |  
 
Rating table notes
 | 
| Biographical data |  | 
   | Name: Rosenberger, Karl Otto |  | Also known as: Docteur Rosenberger; C.O. Rosenberger |  
   | Born: 5 Jan. 1807 |  
   | Died: 29 Dec. 1866 |  |  |  
   | Notes: |  
   | Gaige has Karl Otto Rosenberger; Shakhmatniy Listok has Karl Osipovich Rosenberger in 1860 and Karl Ottovich Rosenberger in 1863. |  |  |  |  
   | References |  | 
| Books |  
   | Gaige, Chess Personalia, page 360 |  | Periodicals |  
   | [BSB], no. 1, 1889, page 60 |  
   | [CP], vol. 4, no. 2, Aug. 1853, page 64 |  
   | [CPC], vol. 13, no. 4, Apr. 1852, page 120 |  
   | [Reg], vol. 3, no. 8, 1 Aug. 1851, page 237 |  
   | [Reg], vol. 3, no. 9, 1 Sep. 1851, page 271 |  
   | [Reg], vol. 3, no. 11, 1 Nov. 1851, page 350 |  
   | [SLk], vol. 2, no. 14, Feb. 1860, page 33 |  
   | [SLk], vol. 5, no. 51, Mar. 1863, page 73 |  
   | [SZ], vol. 4, no. 6, June 1849, page 221 |  |  |