Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1896 |
148 |
2292 | (62) | 22 |
| 1897 |
181 |
2263 | (65) | 0 |
| 1898 |
216 |
2234 | (66) | 0 |
| 1899 |
250 |
2205 | (63) | 0 |
| 1900 |
273 |
2176 | (56) | 21 |
| 1901 |
334 |
2145 | (63) | 0 |
| 1902 |
390 |
2114 | (66) | 0 |
| 1903 |
433 |
2083 | (66) | 0 |
| 1904 |
499 |
2051 | (63) | 0 |
| 1905 |
555 |
2020 | (56) | 16 |
| 1906 |
465 |
2086 | (61) | 0 |
| 1907 |
387 |
2153 | (62) | 5 |
| 1908 |
365 |
2174 | (66) | 6 |
| 1909 |
407 |
2166 | (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] |
| |
