Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1875 |
28 |
2439 | (72) | 12 |
| 1876 |
32 |
2430 | (77) | 0 |
| 1877 |
37 |
2421 | (81) | 0 |
| 1878 |
37 |
2411 | (84) | 0 |
| 1879 |
42 |
2402 | (85) | 0 |
| 1880 |
49 |
2393 | (84) | 0 |
| 1881 |
61 |
2383 | (82) | 0 |
| 1882 |
71 |
2374 | (79) | 11 |
| 1883 |
86 |
2359 | (85) | 2 |
Rating table notes
|
| Biographical data |
| Name: Roberts, James |
| Born: |
| Died: |
|
| |
| References |
| Books |
| Gilberg, Fifth American Chess Congress, page 99 |
| Reichhelm and Shipley, Chess in Philadelphia, page 12 |
| van Winsen, James Mason in America, page 46, 60, 319 |
| Periodicals |
| [ILN], vol. 66, 12 June 1875, page 571 |
| |
