(1) | 24.6 | | Janis Walsh | (Mitcham AC) | 1 FINAL | Motspur Park | 18 May 1974 |
(2) | 24.82/+2.6 | | Holly Ryan | (Shaftesbury Barnet Harriers) | 1 FINAL | Kingsmeadow Stadium | 11 May 2024 |
(3) | 25.0/+8.0 | | Lynne Draper | (Redhill & Reigate AC) | 1 FINAL | Motspur Park | 16 May 1981 |
(4) | 25.1/+0.1 | | Donna Fraser | (Croydon Harriers) | 1 FINAL | Tooting Bec | 17 May 1987 |
(5) | 25.2 | | Janis Walsh | (Mitcham AC) | 1 S-FINAL 1 | Wimbledon Park | 15 May 1974 |
(6) | 25.3/-0.3 | | Donna Fraser | (Croydon Harriers) | 1 HEAT 1 | Tooting Bec | 16 May 1987 |
(7) | 25.34/0.3 | | Gracelyn Kendeck | (Croydon Harriers) | 1 FINAL | Kingsmeadow Stadium | 14 May 2022 |
(8) | 25.38/+2.6 | | Shivelle Marshall | (Croydon Harriers) | 2 FINAL | Kingsmeadow Stadium | 11 May 2024 |
| 25.38/+0.2 | | Shivelle Marshall | (Croydon Harriers) | 1 HEAT 5 | Kingsmeadow Stadium | 11 May 2024 |
(10) | 25.4w/(+4.1) | | Bernadette Ross | (Mitcham AC) | 1 FINAL | Motspur Park | 15 May 1982 |
(11) | 25.41/-0.7 | | Maya Bruney | (Blackheath & Bromley Harriers AC) | 1 FINAL | Kingsmeadow Stadium | 12 May 2012 |
| 25.41/+1.2 | | Rhiannon Gayle | (Croydon Harriers) | 1 FINAL | Kingsmeadow Stadium | 23 May 2015 |
(13) | 25.48/-0.7 | | Holly Ryan | (Shaftesbury Barnet Harriers) | 1 S-FINAL 1 | Kingsmeadow Stadium | 11 May 2024 |
(14) | 25.5w/+2.7 | | Donna Fraser | (Croydon Harriers) | 1 S-FINAL 1 | Tooting Bec | 16 May 1987 |
(15) | 25.54/-0.1 | | Kayla Bowley | (Croydon Harriers) | 1 FINAL | Kingsmeadow Stadium | 14 May 2016 |
(16) | 25.63/-0.7 | | Imani Lansiquot | (Sutton & District AC) | 2 FINAL | Kingsmeadow Stadium | 12 May 2012 |
(17) | 25.64/-0.7 | | Shivelle Marshall | (Croydon Harriers) | 2 S-FINAL 1 | Kingsmeadow Stadium | 11 May 2024 |
(18) | 25.67/-0.7 | | Ashleigh Clarke | (Croydon Harriers) | 3 FINAL | Kingsmeadow Stadium | 12 May 2012 |
(19) | 25.68/-0.1 | | Racheal Largie-Poleon | (Croydon Harriers) | 1 FINAL | Kingsmeadow Stadium | 13 May 2017 |
(20) | 25.7 | | Marcia van Frederici | (Mitcham AC) | 1 S-FINAL 2 | Motspur Park | 15 May 1976 |
| 25.7 | | Janet Smith | (Mitcham AC) | 1 HEAT 1 | Motspur Park | 19 May 1983 |
(22) | 25.71/+0.2 | | Holly Ryan | (Shaftesbury Barnet Harriers) | 2 HEAT 5 | Kingsmeadow Stadium | 11 May 2024 |
(23) | 25.73 | | Twinelle Hopeson | (Archbishop Tennison School, Croydon) | 1 FINAL | Kingsmeadow Stadium | 13 May 2006 |
| 25.73/-2.0 | | Ashleigh Clarke | (Croydon Harriers) | 1 S-FINAL 2 | Kingsmeadow Stadium | 12 May 2012 |
| 25.73/0.0 | | Ella Rennie | (Herne Hill Harriers) | 1 FINAL | Kingsmeadow Stadium | 13 May 2023 |
(26) | 25.76/-0.6 | | Charlotte Cole | (Walton AC) | 1 FINAL | Kingsmeadow Stadium | 14 May 2005 |
| 25.76/+1.0 | | Kayla Bowley | (Croydon Harriers) | 1 S-FINAL 1 | Kingsmeadow Stadium | 14 May 2016 |
(28) | 25.8 | | Janis Walsh | (Mitcham AC) | 1 HEAT 1 | Wimbledon Park | 15 May 1974 |
| 25.8 | | Elaine Mitchell | (Selsonia Ladies AC) | 1 FINAL | Motspur Park | 12 May 1979 |
| 25.8 | | Lynne Draper | (Redhill & Reigate AC) | 1 S-FINAL 2 | Motspur Park | 13 May 1981 |
| 25.8/+8.0 | | Bernadette Ross | (Mitcham AC) | 2 FINAL | Motspur Park | 16 May 1981 |
| 25.8w/(+4.1) | | Janet Smith | (Mitcham AC) | 2 FINAL | Motspur Park | 15 May 1982 |
| 25.8w/+3.0 | | Donna Fraser | (Croydon Harriers) | 1 FINAL | Motspur Park | 17 May 1986 |
| 25.8/+0.2 | | Sarah Zawada | (Aldershot, Farnham & District AC) | 1 FINAL | Croydon Arena | 11 May 1996 |
(35) | 25.81/+0.8 | | Rhiannon Gayle | (Croydon Harriers) | 1 S-FINAL 1 | Kingsmeadow Stadium | 23 May 2015 |
(36) | 25.82/-1.9 | | Maya Bruney | (Blackheath & Bromley Harriers AC) | 1 HEAT 1 | Kingsmeadow Stadium | 12 May 2012 |
(37) | 25.83/-0.1 | | Cara Russell | (Herne Hill Harriers) | 2 FINAL | Kingsmeadow Stadium | 13 May 2017 |
| 25.83/0.3 | | Ella Rennie | (Herne Hill Harriers) | 2 FINAL | Kingsmeadow Stadium | 14 May 2022 |
(39) | 25.87/-2.7 | | Maya Bruney | (Blackheath & Bromley Harriers AC) | 1 S-FINAL 1 | Kingsmeadow Stadium | 12 May 2012 |
(40) | 25.9 | | Jackie Harman | (unattached) | 1 S-FINAL 1 | Motspur Park | 13 May 1981 |
| 25.9 | | Anisha Barnaby | (Blackheath Harriers) | 1 FINAL | Kingsmeadow Stadium | 27 July 1997 |
(42) | 25.93/-0.6 | | Lizzie Cave | (Aldershot, Farnham & District AC) | 2 FINAL | Kingsmeadow Stadium | 14 May 2005 |
(43) | 26.0 | | Elaine Mitchell | (Selsonia Ladies AC) | 1 S-FINAL 1 | Motspur Park | 12 May 1979 |
| 26.0w/+2.1 | | Donna Fraser | (Croydon Harriers) | 1 S-FINAL 3 | Motspur Park | 17 May 1986 |
| 26.0/+0.4 | | Sarah Zawada | (Aldershot, Farnham & District AC) | 1 HEAT 1 | Croydon Arena | 11 May 1996 |
| 26.00/-0.6 | | Twinelle Hopeson | (Archbishop Tennison School, Croydon) | 3 FINAL | Kingsmeadow Stadium | 14 May 2005 |
| 26.00/-1.2 | | Twinelle Hopeson | (Archbishop Tennison School, Croydon) | 1 HEAT 1 | Kingsmeadow Stadium | 13 May 2006 |
| 26.00/-1.9 | | Kayla Bowley | (Croydon Harriers) | 1 HEAT 1 | Kingsmeadow Stadium | 14 May 2016 |
(49) | 26.01/-1.4 | | Isabella Akpoveta | (Crawley AC) | 1 S-FINAL 1 | Kingsmeadow Stadium | 13 May 2023 |
(50) | 26.02/-1.3 | | Rhiannon Gayle | (Croydon Harriers) | 1 HEAT 2 | Kingsmeadow Stadium | 23 May 2015 |
| 26.02/+2.6 | | Saray-Destiny Crosdale | (Croydon Harriers) | 3 FINAL | Kingsmeadow Stadium | 11 May 2024 |
| 26.02/+2.6 | | Ella Clark | (Crawley AC) | 4 FINAL | Kingsmeadow Stadium | 11 May 2024 |
|
52 performances of 26.02 or better. |