Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1896 |
148 |
2293 | (62) | 22 |
| 1897 |
173 |
2264 | (66) | 0 |
| 1898 |
209 |
2236 | (66) | 0 |
| 1899 |
239 |
2207 | (63) | 0 |
| 1900 |
262 |
2178 | (56) | 21 |
| 1901 |
318 |
2147 | (63) | 0 |
| 1902 |
370 |
2116 | (66) | 0 |
| 1903 |
408 |
2085 | (66) | 0 |
| 1904 |
466 |
2054 | (63) | 0 |
| 1905 |
535 |
2023 | (56) | 16 |
| 1906 |
450 |
2089 | (61) | 0 |
| 1907 |
379 |
2155 | (62) | 5 |
| 1908 |
355 |
2176 | (66) | 6 |
| 1909 |
392 |
2168 | (77) | 1 |
Rating table notes
|
| Biographical data |
| Name: Rosen, Leon |
| Born: Mar. 1869 |
| Died: 16 Aug. 1942 |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1901-1920, page 315 |
| Forster, Amos Burn, page 633, 967 |
| Gaige, Chess Personalia, page 360 |
| Hilbert, Walter Penn Shipley, page 329 |
| Thulin, Name index to CTC, page 224 |
| Web |
| Sericano, C. [Maestri di scacchi dal 1900 al 1944] |
| |
