Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1911 |
1031 |
1773 | (84) | 2 |
| 1912 |
996 |
1780 | (74) | 11 |
| 1913 |
1010 |
1781 | (80) | 0 |
| 1914 |
936 |
1783 | (84) | 0 |
| 1915 |
868 |
1784 | (87) | 0 |
| 1916 |
866 |
1785 | (88) | 0 |
| 1917 |
869 |
1787 | (88) | 0 |
| 1918 |
890 |
1788 | (87) | 0 |
| 1919 |
888 |
1789 | (84) | 0 |
| 1920 |
973 |
1791 | (81) | 0 |
| 1921 |
1035 |
1792 | (75) | 0 |
| 1922 |
981 |
1793 | (67) | 0 |
| 1923 |
1093 |
1795 | (56) | 11 |
| 1924 |
1173 |
1777 | (53) | 20 |
| 1925 |
1184 |
1765 | (62) | 0 |
| 1926 |
1220 |
1752 | (67) | 0 |
| 1927 |
1222 |
1740 | (69) | 0 |
| 1928 |
1165 |
1727 | (67) | 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] |
| |
