(1) | 55.41 | CBP | Twinelle Hopeson | (Croydon Harriers) | 1 FINAL | Kingsmeadow Stadium | 9 May 2010 |
(2) | 55.62 | | Arabella Wilson | (Winchester & District AC) | 1 FINAL | Kingsmeadow Stadium | 12 May 2024 |
(3) | 55.70 | | Katie Snowden (U17) | (Herne Hill Harriers) | 2 FINAL | Kingsmeadow Stadium | 9 May 2010 |
(4) | 56.0 | | Adelle Tracey | (Guildford & Godalming AC) | 1 FINAL | Kingsmeadow Stadium | 13 May 2012 |
(5) | 56.06 | | Yimika Adewakun | (Blackheath & Bromley Harriers AC) | 1 FINAL | Kingsmeadow Stadium | 15 May 2011 |
(6) | 56.3 | CBP | Claire Nichols | (Woking AC) | 1 FINAL | Wimbledon Park | 10 May 1997 |
| 56.3 | | Jessie Knight | (Herne Hill Harriers) | 2 FINAL | Kingsmeadow Stadium | 13 May 2012 |
(8) | 56.35 | | Victoria Hewett | (Woking AC) | 1 FINAL | Kingsmeadow Stadium | 10 May 2009 |
(9) | 56.36 | | Nicole Kendall | (Kingston AC & Polytechnic Harriers) | 1 FINAL | Kingsmeadow Stadium | 24 May 2015 |
(10) | 56.41 | | Sophie Osborn | (Kingston AC & Polytechnic Harriers) | 2 FINAL | Kingsmeadow Stadium | 12 May 2024 |
(11) | 56.5 | CBP | Diana Bennett | (Epsom & Ewell Harriers) | 1 FINAL | Croydon Arena | 16 May 1993 |
(12) | 56.57 | | Yimika Adewakun | (Sutton & District AC) | 1 HEAT 2 | Kingsmeadow Stadium | 9 May 2010 |
(13) | 56.61 | | Katie Snowden | (Herne Hill Harriers) | 2 FINAL | Kingsmeadow Stadium | 15 May 2011 |
(14) | 56.70 | | Caitlyn Harvey | (Kingston AC & Polytechnic Harriers) | 1 FINAL | Kingsmeadow Stadium | 14 May 2023 |
(15) | 56.74 | | Ellie Grove | (Guildford & Godalming AC) | 1 FINAL | Kingsmeadow Stadium | 14 May 2017 |
(16) | 56.83 | | Yimika Adewakun | (Sutton & District AC) | 3 FINAL | Kingsmeadow Stadium | 9 May 2010 |
(17) | 56.84 | | Eleanor Grove | (Guildford & Godalming AC) | 1 FINAL | Kingsmeadow Stadium | 13 May 2018 |
(18) | 56.85 | | Molly Renfer | (Kingston AC & Polytechnic Harriers) | 3 FINAL | Kingsmeadow Stadium | 15 May 2011 |
(19) | 56.94 | | Megan Aitchison | (Aldershot, Farnham & District AC) | 1 FINAL | Kingsmeadow Stadium | 26 May 2013 |
(20) | 57.2 | | Lauren Webb | (Sutton & District AC) | 1 FINAL | Kingsmeadow Stadium | 11 May 2003 |
(21) | 57.27 | | Vickie Hewett | (Woking AC) | 1 FINAL | Kingsmeadow Stadium | 11 May 2008 |
(22) | 57.29 | | Odette Campbell | (Croydon Harriers) | 2 FINAL | Kingsmeadow Stadium | 10 May 2009 |
(23) | 57.40 | | Sophie Osborn | (Epsom & Ewell Harriers) | 2 FINAL | Kingsmeadow Stadium | 14 May 2023 |
(24) | 57.5 | | Elizabeth Williams | (Walton AC) | 1 FINAL | Croydon Arena | 15 May 1994 |
| 57.5 | | Elizabeth Williams | (Walton AC) | 1 FINAL | Croydon Arena | 11 May 1996 |
|
25 performances of 57.50 or better. |