Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1911 |
1166 |
1760 | (63) | 13 |
| 1912 |
1135 |
1762 | (61) | 11 |
| 1913 |
1181 |
1756 | (69) | 0 |
| 1914 |
1140 |
1750 | (74) | 0 |
| 1915 |
1056 |
1743 | (76) | 0 |
| 1916 |
1064 |
1737 | (76) | 0 |
| 1917 |
1065 |
1730 | (74) | 0 |
| 1918 |
1067 |
1724 | (69) | 0 |
| 1919 |
1091 |
1718 | (62) | 11 |
| 1920 |
1189 |
1732 | (65) | 0 |
| 1921 |
1288 |
1747 | (65) | 0 |
| 1922 |
1309 |
1762 | (61) | 0 |
| 1923 |
1455 |
1777 | (53) | 11 |
| 1924 |
1491 |
1766 | (50) | 20 |
| 1925 |
1567 |
1754 | (60) | 0 |
| 1926 |
1669 |
1742 | (65) | 0 |
| 1927 |
1690 |
1730 | (67) | 0 |
| 1928 |
1678 |
1718 | (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] |
| |
