Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1910 |
1028 |
1872 | (115) | 3 |
| 1911 |
1051 |
1877 | (112) | 3 |
| 1912 |
1007 |
1892 | (112) | 0 |
| 1913 |
1014 |
1907 | (111) | 0 |
| 1914 |
950 |
1922 | (110) | 0 |
| 1915 |
864 |
1937 | (109) | 0 |
| 1916 |
831 |
1952 | (107) | 0 |
| 1917 |
813 |
1968 | (104) | 0 |
| 1918 |
809 |
1983 | (101) | 0 |
| 1919 |
792 |
1998 | (97) | 0 |
| 1920 |
824 |
2013 | (93) | 0 |
| 1921 |
872 |
2028 | (87) | 0 |
| 1922 |
856 |
2043 | (80) | 0 |
| 1923 |
893 |
2058 | (71) | 0 |
| 1924 |
893 |
2073 | (59) | 20 |
| 1925 |
941 |
2074 | (68) | 0 |
| 1926 |
994 |
2074 | (74) | 0 |
| 1927 |
1030 |
2074 | (78) | 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 |
| |
