Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1910 |
1051 |
1893 | (111) | 3 |
| 1911 |
1060 |
1898 | (108) | 3 |
| 1912 |
1029 |
1912 | (108) | 0 |
| 1913 |
1039 |
1926 | (108) | 0 |
| 1914 |
971 |
1940 | (108) | 0 |
| 1915 |
886 |
1955 | (107) | 0 |
| 1916 |
858 |
1969 | (105) | 0 |
| 1917 |
836 |
1983 | (103) | 0 |
| 1918 |
833 |
1997 | (100) | 0 |
| 1919 |
811 |
2012 | (96) | 0 |
| 1920 |
851 |
2026 | (92) | 0 |
| 1921 |
901 |
2040 | (86) | 0 |
| 1922 |
898 |
2054 | (79) | 0 |
| 1923 |
950 |
2069 | (70) | 0 |
| 1924 |
938 |
2083 | (59) | 20 |
| 1925 |
983 |
2083 | (68) | 0 |
| 1926 |
1037 |
2082 | (74) | 0 |
| 1927 |
1083 |
2082 | (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 |
| |
