Under-20 Women | 400m Hurdles | 15 May 1993 | Croydon Arena | 68.8 | CBP | Katrina Norman | (Walton AC) |
Under-20 Women | 400m Hurdles | 15 May 1994 | Croydon Arena | 63.5 | CBP | Katrina Norman | (Walton AC) |
Under-20 Women | 400m Hurdles | 14 May 1995 | Croydon Arena | 67.4 | | Rebecca Simpson | (Guildford & Godalming AC) |
Under-20 Women | 400m Hurdles | 12 May 1996 | Croydon Arena | 65.5 | | Rebecca Simpson | (Guildford & Godalming AC) |
Under-20 Women | 400m Hurdles | 10 May 1997 | Wimbledon Park | 64.4 | | Yewande Ige | (Sutton & District AC) |
Under-20 Women | 400m Hurdles | 9 May 1998 | Kingsmeadow Stadium | 67.1 | | Ruth Brereton | (Herne Hill Harriers) |
Under-20 Women | 400m Hurdles | 8 May 1999 | Kingsmeadow Stadium | 65.0 | | Ruth Brereton | (Herne Hill Harriers) |
Under-20 Women | 400m Hurdles | 13 May 2000 | Croydon Arena | 67.6 | | Ruth Brereton | (Herne Hill Harriers) |
Under-20 Women | 400m Hurdles | 12 May 2001 | Kingsmeadow Stadium | 62.9 | CBP | Natalie Christmas | (Crawley AC) |
Under-20 Women | 400m Hurdles | 12 May 2002 | Kingsmeadow Stadium | 63.22 | | Emily Parker | (Epsom & Ewell Harriers) |
Under-20 Women | 400m Hurdles | 11 May 2003 | Kingsmeadow Stadium | 64.34 | | Sarah-Jane Pickett | (Aldershot, Farnham & District AC) |
Under-20 Women | 400m Hurdles | 16 May 2004 | Kingsmeadow Stadium | 66.1 | | Amy Forsyth | (Belgrave Harriers) |
Under-20 Women | 400m Hurdles | 15 May 2005 | Kingsmeadow Stadium | 64.73 | | Claire O'Neill | (Bracknell AC) |
Under-20 Women | 400m Hurdles | 14 May 2006 | Kingsmeadow Stadium | 63.28 | | Alex Banner | (Guildford & Godalming AC) |
Under-20 Women | 400m Hurdles | 13 May 2007 | Kingsmeadow Stadium | 65.82 | | Vanessa Ward | (Guildford & Godalming AC) |
Under-20 Women | 400m Hurdles | 11 May 2008 | Kingsmeadow Stadium | 64.98 | | Lizzie Thompson | (Epsom & Ewell Harriers) |
Under-20 Women | 400m Hurdles | 10 May 2009 | Kingsmeadow Stadium | 63.39 | | Laura Burke | (Windsor, Slough, Eton & Hounslow AC) |
Under-20 Women | 400m Hurdles | 9 May 2010 | Kingsmeadow Stadium | 63.1 | | Laura Burke | (Windsor, Slough, Eton & Hounslow AC) |
Under-20 Women | 400m Hurdles | 15 May 2011 | Kingsmeadow Stadium | 63.65 | | Laura Burke | (Windsor, Slough, Eton & Hounslow AC) |
Under-20 Women | 400m Hurdles | 13 May 2012 | Kingsmeadow Stadium | 61.42 | CBP | Aisha Naibe-Wey | (Herne Hill Harriers) |
Under-20 Women | 400m Hurdles | 26 May 2013 | Kingsmeadow Stadium | 61.08 | CBP | Shona Richards | (Windsor, Slough, Eton & Hounslow AC) |
Under-20 Women | 400m Hurdles | 25 May 2014 | Kingsmeadow Stadium | 62.99 | | Mae Thompson | (Kingston AC & Polytechnic Harriers) |
Under-20 Women | 400m Hurdles | 24 May 2015 | Kingsmeadow Stadium | 66.33 | | Jasmine Mitchell | (Guildford & Godalming AC) |
Under-20 Women | 400m Hurdles | 15 May 2016 | Kingsmeadow Stadium | 64.11 | | Hannah Knights | (Guildford & Godalming AC) |
Under-20 Women | 400m Hurdles | 14 May 2017 | Kingsmeadow Stadium | 64.48 | | Stephanie Fisher | (Blackheath & Bromley Harriers AC) |
Under-20 Women | 400m Hurdles | 13 May 2018 | Kingsmeadow Stadium | 64.68 | | Marcey Winter | (Windsor, Slough, Eton & Hounslow AC) |
Under-20 Women | 400m Hurdles | 12 May 2019 | Kingsmeadow Stadium | 60.90 | CBP | Marcey Winter | (Guildford & Godalming AC) |
Under-20 Women | 400m Hurdles | 1 August 2021 | Kingsmeadow Stadium | 68.33 | | Ella Barker | (Woking AC) |
Under-20 Women | 400m Hurdles | 15 May 2022 | Kingsmeadow Stadium | 70.04 | | Cariad Norris | (Guildford & Godalming AC) |