Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1911 |
967 |
1745 | (85) | 2 |
| 1912 |
901 |
1751 | (75) | 11 |
| 1913 |
904 |
1751 | (81) | 0 |
| 1914 |
835 |
1751 | (85) | 0 |
| 1915 |
755 |
1751 | (87) | 0 |
| 1916 |
755 |
1751 | (89) | 0 |
| 1917 |
763 |
1751 | (89) | 0 |
| 1918 |
763 |
1751 | (88) | 0 |
| 1919 |
750 |
1751 | (86) | 0 |
| 1920 |
845 |
1751 | (82) | 0 |
| 1921 |
910 |
1751 | (77) | 0 |
| 1922 |
818 |
1751 | (69) | 0 |
| 1923 |
854 |
1751 | (59) | 11 |
| 1924 |
940 |
1734 | (55) | 20 |
| 1925 |
869 |
1720 | (64) | 0 |
| 1926 |
864 |
1706 | (69) | 0 |
| 1927 |
820 |
1691 | (71) | 0 |
| 1928 |
802 |
1677 | (70) | 11 |
Rating table notes
|
| Biographical data |
| Name: Cotton, Charlotte Helena Minchin |
| Also known as: Miss Helene Cotton; Charlotte Helena Minchin Cotton |
| Born: 1875 |
| Died: 9 Jan. 1929 |
| |
| Notes: |
| Some sources have 'Miss Selma Cotton' at San Remo 1911, but Winter's Chess Note 11111 makes it clear that this was Helena Cotton. |
|
| |
| References |
| Periodicals |
| [BCM], vol. 28, no. 9, Sep. 1908, page 376 |
| Web |
| Winter, Edward. [Chess and Women] |
| Winter, Edward. [CN 11101. Miss Cotton] |
| Winter, Edward. [CN 11107. Miss Cotton] |
| Winter, Edward. [CN 11111. Miss Cotton] |
| Winter, Edward. [CN 4838. 'Unofficial European women's champion'] |
| Winter, Edward. [CN 6627. San Remo, 1911] |
| |
