| In office | Leader | % Correct |
|---|---|---|
| 2020- | Keir Starmer | 99%
|
| 1994-2007 | Tony Blair | 96%
|
| 2007-2010 | Gordon Brown | 93%
|
| 2015-2020 | Jeremy Corbyn | 93%
|
| 1963 | George Brown | 89%
|
| 2010-2015 | Ed Miliband | 86%
|
| 1963-1976 | Harold Wilson | 85%
|
| 1935-1955 | Clement Attlee | 84%
|
| 1983-1992 | Neil Kinnock | 83%
|
| 1976-1980 | James Callaghan | 82%
|
| 1992-1994 | John Smith | 75%
|
| 1980-1983 | Michael Foot | 72%
|
| 1922-1931 | Ramsay MacDonald | 70%
|
| 1911-1914 | Ramsay MacDonald | 70%
|
| 2015 | Harriet Harman | 51%
|
| 2010 | Harriet Harman | 51%
|
| 1906-1908 | Keir Hardie | 51%
|
| 1994 | Margaret Beckett | 47%
|
| 1955-1963 | Hugh Gaitskell | 41%
|
| 1931-1932 | Arthur Henderson | 25%
|
| 1914-1917 | Arthur Henderson | 25%
|
| 1908-1910 | Arthur Henderson | 25%
|
| 1955 | Herbert Morrison | 20%
|
| 1932-1935 | George Lansbury | 16%
|
| 1921-1922 | J.R. Clynes | 10%
|
| 1910-1911 | George Barnes | 9%
|
| 1917-1921 | William Adamson | 8%
|