Ratings 
  
  | Year       | 
  Rank   | 
   Edo    | 
  Dev.   | 
  Games  | 
 
  | 1922  | 
  632  | 
  2140 |  (60) |   11 | 
 
  | 1923  | 
  662  | 
  2147 |  (57) |   12 | 
 
  | 1924  | 
  582  | 
  2173 |  (64) |   0 | 
 
  | 1925  | 
  504  | 
  2199 |  (66) |   0 | 
 
  | 1926  | 
  448  | 
  2225 |  (65) |   0 | 
 
  | 1927  | 
  381  | 
  2251 |  (61) |   9 | 
 
  | 1928  | 
  409  | 
  2248 |  (65) |   4 | 
 
  | 1929  | 
  394  | 
  2255 |  (71) |   0 | 
 
  | 1930  | 
  384  | 
  2262 |  (74) |   0 | 
 
  | 1931  | 
  377  | 
  2268 |  (75) |   0 | 
 
  | 1932  | 
  355  | 
  2275 |  (75) |   0 | 
 
  | 1933  | 
  349  | 
  2281 |  (72) |   0 | 
 
  | 1934  | 
  326  | 
  2288 |  (67) |   0 | 
 
  | 1935  | 
  325  | 
  2294 |  (59) |   0 | 
 
  | 1936  | 
  294  | 
  2301 |  (46) |   23 | 
 
  | 1937  | 
  440  | 
  2256 |  (50) |   17 | 
 
  | 1938  | 
  497  | 
  2238 |  (64) |   0 | 
 
  | 1939  | 
  519  | 
  2219 |  (75) |   0 | 
 
  | 1940  | 
  539  | 
  2201 |  (84) |   0 | 
 
  | 1941  | 
  582  | 
  2183 |  (91) |   0 | 
 
  | 1942  | 
  598  | 
  2164 |  (97) |   2 | 
 
  
Rating table notes
 
 | 
| Biographical data |  
   | Name: Mugridge, Donald Henry   | 
 
   | Born: 23 Apr. 1905 | 
 
   | Died: 3 Nov. 1964 | 
 
  |  
|   |  
   | References | 
 
| Books |  
   |    Di Felice, Chess Results, 1921-1930, page 62 | 
 
   |    Di Felice, Chess Results, 1936-1940, page 365 | 
 
   |    Di Felice, Chess Results, 1941-1946, page 352 | 
 
   |    Gaige, Chess Personalia, page 293 | 
 
   |    Gaige, Chess Tournament Crosstables IV, page 602 | 
 
   |    Hilbert, Essays in American Chess History, page 74 | 
 
   |    Hilbert, Napier, page 341 | 
 
   |    Skinner and Verhoeven, Alexander Alekhine's Chess Games, page 217 | 
 
   |    Woodger, Reuben Fine, page 352 | 
 
| Web |  
   |    [California Chess Tournaments] | 
 
 
 |    |