| Ratings 
 
 
  | Year | Rank | Edo | Dev. | Games |  
  | 1864 | 133 | 2240 | (68) | 20 |  
  | 1865 | 134 | 2234 | (71) | 0 |  
  | 1866 | 139 | 2228 | (71) | 10 |  
  | 1867 | 142 | 2223 | (81) | 0 |  
  | 1868 | 153 | 2218 | (89) | 0 |  
  | 1869 | 155 | 2213 | (96) | 0 |  
  | 1870 | 155 | 2207 | (102) | 0 |  
  | 1871 | 166 | 2202 | (107) | 0 |  
  | 1872 | 173 | 2197 | (111) | 0 |  
  | 1873 | 174 | 2191 | (115) | 0 |  
  | 1874 | 176 | 2186 | (118) | 0 |  
  | 1875 | 195 | 2181 | (121) | 0 |  
  | 1876 | 191 | 2176 | (124) | 0 |  
  | 1877 | 189 | 2170 | (126) | 0 |  
  | 1878 | 195 | 2165 | (128) | 0 |  
  | 1879 | 203 | 2160 | (130) | 0 |  
  | 1880 | 225 | 2154 | (131) | 0 |  
  | 1881 | 256 | 2149 | (133) | 0 |  
  | 1882 | 263 | 2144 | (134) | 0 |  
  | 1883 | 292 | 2138 | (134) | 0 |  
  | 1884 | 322 | 2133 | (135) | 0 |  
  | 1885 | 327 | 2128 | (135) | 0 |  
  | 1886 | 336 | 2123 | (135) | 0 |  
  | 1887 | 353 | 2117 | (135) | 0 |  
  | 1888 | 363 | 2112 | (135) | 0 |  
  | 1889 | 357 | 2107 | (134) | 0 |  
  | 1890 | 386 | 2101 | (134) | 0 |  
  | 1891 | 393 | 2096 | (133) | 0 |  
  | 1892 | 433 | 2091 | (132) | 0 |  
  | 1893 | 460 | 2085 | (130) | 0 |  
  | 1894 | 472 | 2080 | (129) | 0 |  
  | 1895 | 493 | 2075 | (127) | 0 |  
  | 1896 | 496 | 2070 | (124) | 0 |  
  | 1897 | 513 | 2064 | (122) | 0 |  
  | 1898 | 546 | 2059 | (119) | 0 |  
  | 1899 | 576 | 2054 | (115) | 0 |  
  | 1900 | 603 | 2048 | (112) | 5 |  
 
Rating table notes
 | 
| Biographical data |  | 
   | Name: Jellett, James I. |  
   | Born: 5 Nov. 1842 |  
   | Died: 22 Apr. 1914 |  |  |  
   | Notes: |  
   | Brennen gives death date as 12-04-1914. Gaige gives death date as 22-04-1914. Hilbert gives 'J.J. Jellett', as does Reichhelm on p.56, but not in the index, p.155. The Philadelphia Daily Evening Bulletin of 5 Mar. 1864 also has 'J.J. Jellett'. The Schachzeitung of Apr. 1869 (p.108) has 'J.J. Jellette'. |  |  |  |  
   | References |  | 
| Books |  
   | Gaige, Chess Personalia, page 194 |  
   | Hilbert, Napier, page 4, 104 |  
   | Moran, World Chess Championship I, page 112 |  
   | Reichhelm and Shipley, Chess in Philadelphia, page 10, 59 |  | Periodicals |  
   | [NYC], 10 Dec. 1864 |  
   | [PDEB], 5 Mar. 1864 |  
   | [PDEB], 7 June 1867 |  
   | [Sph], vol. 2, no. 15, 15 Dec. 1866, page 232 |  
   | [SZ], vol. 24, no. 4, Apr. 1869, page 108 |  | Web |  
   | Brennen, Neil.  [The Champion of the North: James Jellett's Adventures in American Chess] |  |  |