Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1896 |
149 |
2294 | (62) | 22 |
| 1897 |
177 |
2265 | (65) | 0 |
| 1898 |
214 |
2237 | (66) | 0 |
| 1899 |
246 |
2208 | (63) | 0 |
| 1900 |
272 |
2180 | (56) | 21 |
| 1901 |
334 |
2148 | (63) | 0 |
| 1902 |
388 |
2117 | (66) | 0 |
| 1903 |
436 |
2085 | (66) | 0 |
| 1904 |
503 |
2054 | (63) | 0 |
| 1905 |
561 |
2023 | (56) | 16 |
| 1906 |
470 |
2089 | (61) | 0 |
| 1907 |
389 |
2155 | (62) | 5 |
| 1908 |
364 |
2176 | (66) | 6 |
| 1909 |
408 |
2169 | (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] |
| |
