Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1922 |
1096 |
1820 | (70) | 16 |
| 1923 |
1239 |
1808 | (76) | 0 |
| 1924 |
1311 |
1796 | (80) | 0 |
| 1925 |
1363 |
1784 | (83) | 0 |
| 1926 |
1439 |
1772 | (83) | 0 |
| 1927 |
1472 |
1760 | (82) | 0 |
| 1928 |
1447 |
1747 | (80) | 12 |
Rating table notes
|
| Biographical data |
| Name: Roberts, P.C. |
| Born: |
| Died: |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1921-1930, page 335 |
| Periodicals |
| [ENS], no. 17015, 29 Dec. 1921, page 6 |
| [SST], no. 1875, 1 Jan. 1922, page 6 |
| |
