Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1911 |
1132 |
1747 | (63) | 13 |
| 1912 |
1094 |
1749 | (62) | 11 |
| 1913 |
1137 |
1743 | (69) | 0 |
| 1914 |
1068 |
1737 | (74) | 0 |
| 1915 |
1005 |
1730 | (76) | 0 |
| 1916 |
1005 |
1724 | (76) | 0 |
| 1917 |
1001 |
1717 | (74) | 0 |
| 1918 |
1005 |
1711 | (69) | 0 |
| 1919 |
1025 |
1705 | (62) | 11 |
| 1920 |
1118 |
1719 | (65) | 0 |
| 1921 |
1197 |
1734 | (65) | 0 |
| 1922 |
1203 |
1749 | (61) | 0 |
| 1923 |
1320 |
1763 | (53) | 11 |
| 1924 |
1390 |
1753 | (50) | 20 |
| 1925 |
1443 |
1740 | (60) | 0 |
| 1926 |
1529 |
1728 | (65) | 0 |
| 1927 |
1563 |
1715 | (67) | 0 |
| 1928 |
1526 |
1703 | (65) | 11 |
Rating table notes
|
| Biographical data |
| Name: Cotton, Charlotte Helena Minchin |
| Also known as: Miss Helene Cotton; Miss 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 |
| Saunders, John. [Tournament: 12th BCF Victory Congress] |
| 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] |
| |
