Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1910 |
1038 |
1877 | (115) | 3 |
| 1911 |
1060 |
1882 | (112) | 3 |
| 1912 |
1028 |
1897 | (112) | 0 |
| 1913 |
1044 |
1912 | (111) | 0 |
| 1914 |
970 |
1927 | (110) | 0 |
| 1915 |
891 |
1942 | (109) | 0 |
| 1916 |
859 |
1957 | (107) | 0 |
| 1917 |
839 |
1972 | (104) | 0 |
| 1918 |
838 |
1987 | (101) | 0 |
| 1919 |
822 |
2002 | (97) | 0 |
| 1920 |
858 |
2017 | (93) | 0 |
| 1921 |
906 |
2032 | (87) | 0 |
| 1922 |
897 |
2047 | (80) | 0 |
| 1923 |
956 |
2062 | (71) | 0 |
| 1924 |
934 |
2077 | (59) | 20 |
| 1925 |
975 |
2077 | (68) | 0 |
| 1926 |
1029 |
2077 | (74) | 0 |
| 1927 |
1074 |
2077 | (77) | 6 |
Rating table notes
|
| Biographical data |
| Name: de Haas, Efraim |
| Born: 28 Nov. 1887 |
| Died: 1943 |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1901-1920, page 303 |
| Di Felice, Chess Results, 1921-1930, page 321 |
| Gaige, Chess Personalia, page 88, 158 |
| Thulin, Name index to CTC, page 99 |
| |
