Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1905 |
964 |
1861 | (80) | 13 |
| 1906 |
939 |
1867 | (78) | 0 |
| 1907 |
953 |
1874 | (73) | 0 |
| 1908 |
942 |
1880 | (66) | 13 |
| 1909 |
1027 |
1878 | (71) | 0 |
| 1910 |
1017 |
1876 | (74) | 0 |
| 1911 |
1046 |
1873 | (75) | 8 |
Rating table notes
|
| Biographical data |
| Name: Orthmann, D. |
| Also known as: Dr. Orthmann |
| Born: |
| Died: |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1901-1920, page 313 |
| Malthan, Schellenberg and et al., Schachkongress des Barmer Schachvereins 1905, page 93, 549, 621 |
| Thulin, Name index to CTC, page 195 |
| Periodicals |
| [DSZ], vol. 60, no. 9, Sep. 1905, page 263 |
| |
