| Senior Ladies | 440yds | 17 August 1946 | Sutton | 66.8 | | Peggy Simmonds | (Hercules AC) |
| Senior Ladies | 440yds | 10 July 1948 | Wimbledon Park | 62.5 | | Paddy Gunn | (Mitcham AC) |
| Senior Ladies | 440yds | 11 June 1949 | Wimbledon Park | 63.6 | | Chris Slemon | (Selsonia Ladies AC) |
| Senior Ladies | 440yds | 24 June 1950 | Wimbledon Park | 61.2 | | Valerie Ball | (Spartan Ladies AC) |
| Senior Ladies | 440yds | 16 June 1951 | Wimbledon Park | 61.8 | | Poppy Germaine | (Selsonia Ladies AC) |
| Senior Ladies | 440yds | 26 July 1952 | Wimbledon Park | 59.3 | | Valerie Ball | (Spartan Ladies AC) |
| Senior Ladies | 440yds | 25 July 1953 | Wimbledon Park | 60.0 | | Chris Slemon | (Selsonia Ladies AC) |
| Senior Ladies | 440yds | 15 May 1954 | Croydon Arena | 60.9 | | Chris Slemon | (Selsonia Ladies AC) |
| Senior Ladies | 440yds | 21 May 1955 | Croydon Arena | 61.9 | | Pat Webb | (Streatham Ladies AC) |
| Senior Ladies | 440yds | 26 May 1956 | Croydon Arena | 60.6 | | Beryl Proctor | (Croydon Harriers) |
| Senior Ladies | 440yds | 24 May 1958 | Croydon Arena | 58.5 | CBP | Ann Sissons | (Epsom & Ewell Harriers) |
| Senior Ladies | 440yds | 23 May 1959 | Croydon Arena | 58.6 | | Ann Sissons | (Epsom & Ewell Harriers) |
| Senior Ladies | 440yds | 21 May 1960 | Croydon Arena | 57.4 | CBP | Joy Jordan | (Spartan Ladies AC) |
| Senior Ladies | 440yds | 20 May 1961 | Croydon Arena | 59.4 | | Patricia Jackson | (Hercules AC) |
| Senior Ladies | 440yds | 19 May 1962 | Wimbledon Park | 60.0 | | Anne Smith | (Mitcham AC) |
| Senior Ladies | 440yds | 18 May 1963 | Wimbledon Park | 59.6 | | Anne Smith | (Mitcham AC) |
| Senior Ladies | 440yds | 23 May 1964 | Wimbledon Park | 57.7 | | Jenny Smart | (Spartan Ladies AC) |
| Senior Ladies | 440yds | 22 May 1965 | Wimbledon Park | 57.1 | CBP | Anne Smith | (Mitcham AC) |
| Senior Ladies | 440yds | 14 May 1966 | Wimbledon Park | 58.5 | | Diane McNamara | (Selsonia Ladies AC) |
| Senior Ladies | 440yds | 13 May 1967 | Wimbledon Park | 58.3 | | Diane McNamara | (Selsonia Ladies AC) |
| Senior Ladies | 440yds | 25 May 1968 | Wimbledon Park | 56.1 | CBP | Anne Smith | (Mitcham AC) |
| Senior Ladies | 400m | 31 May 1969 | Wimbledon Park | 55.9 | | Jenny Pawsey | (Mitcham AC) |
| Senior Ladies | 400m | 16 May 1970 | Wimbledon Park | 57.9 | | Marion Vinall | (Woking AC) |
| Senior Ladies | 400m | 22 May 1971 | Wimbledon Park | 58.4 | | Maureen Huggins (U20) | (Selsonia Ladies AC) |
| Senior Ladies | 400m | 20 May 1972 | Wimbledon Park | 57.5 | | Barbara Corbett | (Epsom & Ewell Harriers) |
| Senior Ladies | 400m | 19 May 1973 | Motspur Park | 57.2 | | Barbara Corbett | (Epsom & Ewell Harriers) |
| Senior Ladies | 400m | 18 May 1974 | Motspur Park | 58.3 | | Linda Minnett | (Mitcham AC) |
| Senior Ladies | 400m | 7 June 1975 | Motspur Park | 58.6 | | Sian Brooks | (Feltham AC) |
| Senior Ladies | 400m | 15 May 1976 | Motspur Park | 57.9 | | Linda Minnett | (Mitcham AC) |
| Senior Ladies | 400m | 14 May 1977 | Motspur Park | 57.8 | | Janet Martin | (Feltham AC) |
| Senior Ladies | 400m | 13 May 1978 | Motspur Park | 55.6 | | Janet Martin | (Feltham AC) |
| Senior Ladies | 400m | 12 May 1979 | Motspur Park | 57.3 | | Alison Dunn | (Epsom & Ewell Harriers) |
| Senior Ladies | 400m | 17 May 1980 | Motspur Park | 57.0 | | J McBezah | (Selsonia Ladies AC) |
| Senior Ladies | 400m | 16 May 1981 | Motspur Park | 55.8 | CBP | Virginia Graham | (Guildford & Godalming AC) |
| Senior Ladies | 400m | 15 May 1982 | Motspur Park | 55.5 | CBP | Shireen Hassan | (Croydon Harriers) |
| Senior Ladies | 400m | 21 May 1983 | Motspur Park | 55.7 | | Shireen Bailey(Hassan) | (Croydon Harriers) |
| Senior Ladies | 400m | 19 May 1984 | Motspur Park | 56.6 | | Shireen Bailey | (Croydon Harriers) |
| Senior Ladies | 400m | 18 May 1985 | Motspur Park | 55.5 | CBP= | Shireen Bailey | (Bromley Ladies AC) |
| Senior Ladies | 400m | 17 May 1986 | Motspur Park | 56.5 | | Lisa Thompson | (Surrey Beagles AC) |
| Senior Ladies | 400m | 16 May 1987 | Tooting Bec | 56.2 | | Lisa Thompson | (Bromley Ladies AC) |
| Senior Ladies | 400m | 14 May 1988 | Tooting Bec | 54.5 | CBP | Lynne Draper | (Croydon Harriers) |
| Senior Ladies | 400m | 20 May 1989 | Tooting Bec | 56.5 | | Linda Smith | (Croydon Harriers) |
| Senior Women | 400m | 19 May 1990 | Croydon Arena | 55.5 | | Linda Smith | (Croydon Harriers) |
| Senior Women | 400m | 19 May 1991 | Croydon Arena | 54.4 | CBP | Donna Fraser | (Croydon Harriers) |
| Senior Women | 400m | 17 May 1992 | Croydon Arena | 55.7 | | Michelle Pierre | (Croydon Harriers) |
| Senior Women | 400m | 16 May 1993 | Croydon Arena | 57.4 | | Clare Bleasdale | (Guildford & Godalming AC) |
| Senior Women | 400m | 15 May 1994 | Croydon Arena | 55.4 | | Donna Fraser | (Croydon Harriers) |
| Senior Women | 400m | 13 May 1995 | Croydon Arena | 57.4 | | Michelle Pierre | (Croydon Harriers) |
| Senior Women | 400m | 12 May 1996 | Croydon Arena | 53.9 | CBP | Michelle Pierre | (Croydon Harriers) |
| Senior Women | 400m | 11 May 1997 | Wimbledon Park | 53.6 | CBP | Michelle Pierre | (Croydon Harriers) |
| Senior Women | 400m | 9 May 1998 | Kingsmeadow Stadium | 56.1 | | Elizabeth Williams | (Walton AC) |
| Senior Women | 400m | 8 May 1999 | Kingsmeadow Stadium | 56.8 | | Elizabeth Williams | (Walton AC) |
| Senior Women | 400m | 13 May 2000 | Croydon Arena | 55.6 | | Elizabeth Williams | (Walton AC) |
| Senior Women | 400m | 12 May 2001 | Kingsmeadow Stadium | 55.0 | | Jennifer Culley | (Belgrave Harriers) |
| Senior Women | 400m | 11 May 2002 | Kingsmeadow Stadium | 55.20 | | Michelle Pierre | (Shaftesbury Barnet Harriers) |
| Senior Women | 400m | 10 May 2003 | Kingsmeadow Stadium | 57.0 | | Michelle Pierre | (Shaftesbury Barnet Harriers) |
| Senior Women | 400m | 15 May 2004 | Kingsmeadow Stadium | 55.95 | | Michelle Pierre | (Shaftesbury Barnet Harriers) |
| Senior Women | 400m | 14 May 2005 | Kingsmeadow Stadium | 57.43 | | Ruth Brereton | (Team Solent) |
| Senior Women | 400m | 13 May 2006 | Kingsmeadow Stadium | 57.43 | | Jennifer Culley | (Belgrave Harriers) |
| Senior Women | 400m | 13 May 2007 | Kingsmeadow Stadium | 55.84 | | Susan Bovill | (Sutton & District AC) |
| Senior Women | 400m | 10 May 2008 | Kingsmeadow Stadium | 57.87 | | Ruth Brereton | (Woodford Green with Essex Ladies) |
| Senior Women | 400m | 9 May 2009 | Kingsmeadow Stadium | 55.21 | | Helen Pryer | (Windsor, Slough, Eton & Hounslow AC) |
| Senior Women | 400m | 8 May 2010 | Kingsmeadow Stadium | 56.24 | | Emily Parker | (Epsom & Ewell Harriers) |
| Senior Women | 400m | 12 May 2012 | Kingsmeadow Stadium | 56.52 | | Twinelle Hopeson | (Croydon Harriers) |
| Senior Women | 400m | 25 May 2013 | Kingsmeadow Stadium | 55.02 | | Mary Iheke | (Kingston AC & Polytechnic Harriers) |
| Senior Women | 400m | 24 May 2014 | Kingsmeadow Stadium | 56.69 | | Megan Aitchison | (Aldershot, Farnham & District AC) |
| Senior Women | 400m | 23 May 2015 | Kingsmeadow Stadium | 54.83 | | Jessie Knight | (Herne Hill Harriers) |
| Senior Women | 400m | 14 May 2016 | Kingsmeadow Stadium | 59.37 | | Susan McLoughlin | (Walton AC) |
| Senior Women | 400m | 13 May 2017 | Kingsmeadow Stadium | 57.53 | | Yimika Adewakun | (Blackheath & Bromley Harriers AC) |
| Senior Women | 400m | 12 May 2018 | Kingsmeadow Stadium | 59.78 | | Susan McLoughlin | (Walton AC) |
| Senior Women | 400m | 11 May 2019 | Kingsmeadow Stadium | 58.9 | | Jasmine Mitchell | (Guildford & Godalming AC) |
| Senior Women | 400m | 31 July 2021 | Kingsmeadow Stadium | 53.85 | | Nicole Kendall | (Thames Valley Harriers) |
| Senior Women | 400m | 14 May 2022 | Kingsmeadow Stadium | 57.36 | | Alex Hill | (Blackheath & Bromley Harriers AC) |
| Senior Women | 400m | 13 May 2023 | Kingsmeadow Stadium | 59.24 | | Laura Burke | (Windsor, Slough, Eton & Hounslow AC) |
