Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1922 |
1153 |
1816 | (70) | 16 |
| 1923 |
1296 |
1804 | (76) | 0 |
| 1924 |
1362 |
1792 | (80) | 0 |
| 1925 |
1423 |
1780 | (82) | 0 |
| 1926 |
1512 |
1768 | (83) | 0 |
| 1927 |
1536 |
1756 | (82) | 0 |
| 1928 |
1508 |
1744 | (79) | 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 |
| |
