(1) | 44.45 | Martyn Rooney | (Croydon Harriers) | Beijing, CHN | 23.08.2015 |
(2) | 45.33 | Paul Sanders | (Team Solent) | Dijon, FRA | 15.06.1991 |
(3) | 45.34 | Dwayne Cowan | (Hercules Wimbledon AC) | Birmingham | 20.08.2017 |
(4) | 45.47 | David McKenzie | (Shaftesbury Barnet Harriers) | Sheffield | 12.06.1994 |
(5) | 45.64 | Paul Harmsworth (U23) | (Team Solent) | Birmingham | 7.08.1984 |
(6) | 45.86 | Jamal Rhoden-Stevens | (Shaftesbury Barnet Harriers) | Palafrugell, Esp | 18.09.2021 |
(7) | 45.91 | Martin Winbolt Lewis | (Achilles Club) | Mexico City, MEX | 17.10.1968 |
(8) | 46.08 | Rod Milne | (Guildford & Godalming AC) | Crystal Palace | 15.06.1980 |
(9) | 46.19 | Roy Dickens | (Shaftesbury Harriers) | Cwmbran | 28.05.1984 |
(10) | 46.39 | Danny Laing | (South London Harriers) | Tokyo, JPN | 25.09.1978 |
(11) | 46.4 | Chris McAllister | (Thames Valley Harriers) | Eton | 28.08.2021 |
(12) | 46.54 | Michael Parper (U20) | (Belgrave Harriers) | Bad Homburg, GER | 7.06.1997 |
(13) | 46.75 | Jon Ridgeon | (Belgrave Harriers) | Newham | 23.08.1992 |
(14) | 47.05 | Nicholas Atwell | (Herne Hill Harriers) | Bedford | 10.06.2018 |
(15) | 47.08 | Zak Curran | (Windsor, Slough, Eton & Hounslow AC) | Stratford (CT) | 17.07.2022 |
(16) | 47.11 | Darren Bernard (U23) | (Herne Hill Harriers) | Northridge, USA | 9.04.1989 |
(17) | 47.12 | Donovan Reid | (Shaftesbury Barnet Harriers) | Cayenne, GUY | 29.04.1989 |
(18) | 47.14 | Dapo Laifa | (Croydon Harriers) | Crystal Palace | 15.06.1985 |
(19) | 47.20 | Dan Donovan | (Team Solent) | Nivelles, BEL | 16.08.1997 |
(20) | 47.22 | Ryan Thomas (U20) | (Belgrave Harriers) | Eton | 5.08.2006 |
(21) | 47.24 | James Hilston (U20) | (Belgrave Harriers) | Loughborough | 18.05.1997 |
(22) | 47.28 | Chris McAlister | (Thames Valley Harriers) | Bromley | 27.07.2023 |
(23) | 47.3 | Derek Pugh | (South London Harriers) | Brussels, BEL | 25.08.1950 |
| 47.3 | David Simpson (U20) | (Croydon Harriers) | Colindale | 14.08.1991 |
(25) | 47.32 | Bob Benn (U23) | (Croydon Harriers) | Cwmbran | 12.06.1977 |
(26) | 47.33 | Bolaji Odunsi | (Croydon Harriers) | Haringey | 10.08.1986 |
(27) | 47.4y | Bob Setti | (Herne Hill Harriers) | White City, London | 14.07.1962 |
| 47.40 | Samuel Adeyemi | (Herne Hill Harriers) | Newham | 24.06.2018 |
(29) | 47.43 | Jonathan Browne | (Kent AC) | Bedford | 25.05.2009 |
(30) | 47.44 | Myles Copeland-Naulty (U23) | (Herne Hill Harriers) | Monroe LA, USA | 16.05.2024 |
(31) | 47.5 | Sam Kabiswa | (Croydon Harriers) | Portsmouth | 6.08.1994 |
(32) | 47.51 | Peter Phillips | (Herne Hill Harriers) | Eton | 9.05.2015 |
(33) | 47.57 | Thomas Staines (U23) | (Basingstoke & Mid Hants AC) | Azusa CA, USA | 19.04.2019 |
(34) | 47.6y | Mel Cheskin (U23) | (Hercules AC) | Boulder CO, USA | 25.04.1964 |
(35) | 47.7y | Les Lewis | (Walton AC) | Auckland, NZL | 11.02.1950 |
| 47.70 | James Hanson (U23) | (Woking AC) | Watford | 20.04.2022 |
(37) | 47.71 | Jamal Clarke | (Windsor, Slough, Eton & Hounslow AC) | Berne, SUI | 14.06.2022 |
(38) | 47.8 | Terence Higgins | (Herne Hill Harriers) | Belgrade, YUG | 26.08.1951 |
| 47.8 | Alan Laifa (U23) | (Croydon Harriers) | Thurrock | 28.07.1985 |
(40) | 47.84 | Jacob Paul (U23) | (Windsor, Slough, Eton & Hounslow AC) | Eton | 7.05.2016 |
| 47.84 | Klaysen Kafuti (U20) | (Croydon Harriers) | Chelmsford | 18.06.2023 |
(42) | 47.85 | Louis Burgess (U20) | (Epsom & Ewell Harriers) | Ashford | 18.08.2002 |
(43) | 47.88 | Richard Haizelden | (Croydon Harriers) | Birmingham | 12.08.1989 |
(44) | 47.9y | Alan Sexton | (Belgrave Harriers) | White City, London | 25.05.1953 |
(45) | 47.93 | Dedan Simmons (U23) | (Harrow AC) | Watford | 5.07.2003 |
(46) | 47.94 | Tim Kuria | (Woking AC) | Abingdon | 8.06.2013 |
(47) | 47.96 | Josh Street (U17) | (South London Harriers) | Birmingham | 10.07.2010 |
(48) | 48.0y | Alan Carr-Locke (U23) | (Croydon Harriers) | Boston, Mass USA | 30.09.1970 |
| 48.0 | Mark Clark (U20) | (Guildford & Godalming AC) | Woking | 20.07.1974 |
(50) | 48.01 | Conor Kelly (U20) | (Hercules Wimbledon AC) | Lee Valley | 19.05.2024 |
(51) | 48.05 | John Gostelow | (Hercules Wimbledon AC) | Crystal Palace | 13.08.1976 |
(52) | 48.1y | John Groves | (Walton AC) | White City, London | 21.05.1956 |
| 48.1y | Robin Woodland (U23) | (Hercules AC) | Motspur Park | 30.05.1959 |
| 48.1 | Richard Demming | (Polytechnic Harriers) | | ??.??1973 |
| 48.1 | Danny Doyley (U20) | (Blackheath & Bromley Harriers AC) | Eton | 13.08.2006 |
(56) | 48.13 | Lawrence Mensah | (Herne Hill Harriers) | Tooting Bec | 18.07.2009 |
(57) | 48.14 | Henry Fisher (U23) | (Blackheath & Bromley Harriers AC) | Birmingham Uni | 9.07.2022 |
(58) | 48.2 | Jack Sam (U20) | (Herne Hill Harriers) | Crystal Palace | 20.09.1969 |
| 48.2 | David Mote (U23) | (Surrey AC) | Aldershot | 11.07.1982 |
(60) | 48.26 | David Cocks (U23) | (Croydon Harriers) | Crystal Palace | 26.06.1981 |
| 48.26 | Glenn Gray | (Herne Hill Harriers) | Cardiff | 8.06.1991 |
(62) | 48.29 | David Warren | (Epsom & Ewell Harriers) | Crystal Palace | 5.07.1980 |
(63) | 48.3 | John Strachan (U23) | (Hercules AC) | Woodford Green | 2.07.1960 |
| 48.3y | Mike Fleet | (Croydon Harriers) | | 29.06.1968 |
| 48.3 | Tim Eaton (U20) | (Mitcham & Sutton AC) | Croydon | 20.05.1990 |
| 48.3 | Nathan Honour (U23) | (Woking AC) | Wokin g | 5.06.1999 |
(67) | 48.31 | Gavin Dublin (U20) | (Croydon Harriers) | Nottingham | 13.07.2002 |
| 48.31 | Lolu Oluwole-Ojo (U20) | (Windsor, Slough, Eton & Hounslow AC) | Oordegem, BEL | 1.06.2013 |
(69) | 48.32 | Blade Ashby (U23) | (Herne Hill Harriers) | Tooting Bec | 5.05.2014 |
(70) | 48.4y | Clive Ryan | (Belgrave Harriers) | Hurlingham | 6.06.1959 |
| 48.4y | Gerard Le Roy | (Belgrave Harriers) | Hurlingham | 5.09.1959 |
| 48.4y | J Robertson | (South London Harriers) | Ilford | 7.07.1962 |
| 48.4 | Michael Riddell (U20) | (Guildford & Godalming AC) | Bracknell | 6.06.1998 |
| 48.4 | Ruben Tabares (U23) | (Blackheath Harriers) | Wigan | 20.05.2000 |
(75) | 48.41 | Frederick Afrifa | (Crawley AC) | Chelmsford | 9.06.2019 |
(76) | 48.43 | Femi Owolade (U23) | (Blackheath & Bromley Harriers AC) | Bromley | 29.07.2009 |
(77) | 48.44 | Shaun Cooke (U20) | (Blackheath & Bromley Harriers AC) | Hendon | 23.08.2015 |
(78) | 48.49 | Jonathan Osbourne (U17) | (Hercules Wimbledon AC) | Bedford | 22.08.2010 |
(79) | 48.5y | G Le Roy | (Belgrave Harriers) | | 1.07.1961 |
| 48.5y | G Leroy | (Belgrave Harriers) | Hurlingham | 1.09.1962 |
| 48.5y | Francis Holland | (Surrey AC) | Norbiton | 15.09.1962 |
| 48.5y | Ian Morgan | (Woking AC) | Sandhurst | 1.07.1967 |
| 48.5 | Brian Davey | (Croydon Harriers) | Hersbruck, GER | 2.08.1980 |
| 48.5 | Owen Parker (U23) | (Herne Hill Harriers) | Neckargemand, GER | 19.08.1984 |
| 48.5 | Dominique Richards (U23) | (Harrow AC) | Tooting Bec | 28.07.2001 |
(86) | 48.51 | Tom Kane (U20) | (Epsom & Ewell Harriers) | Crystal Palace | 23.06.1985 |
| 48.51 | Derek Kinlock (U23) | (Croydon Harriers) | Gillingham | 23.04.2023 |
(88) | 48.59 | Andrew Clements | (Windsor, Slough, Eton & Hounslow AC) | Hendon | 27.07.2013 |
(89) | 48.6 | Nick Lovatt (U20) | (Mitcham AC) | White City, London | 14.08.1965 |
| 48.6 | Tony Martin (U20) | (Dulwich College) | Crystal Palace | 14.06.1969 |
| 48.6 | Mike Whittingham | (Herne Hill Harriers) | Bristol | 5.06.1982 |
| 48.6 | Michael Alleyne (U23) | (Belgrave Harriers) | Windsor | 1.06.1985 |
| 48.6 | Martin Gaston (U20) | (Hercules Wimbledon AC) | Croydon | 20.05.1990 |
| 48.6 | Robert Scantlebury (U20) | (Hercules Wimbledon AC) | Reading | 2.07.1994 |
| 48.6 | Esmond Ferns (U23) | (Hercules Wimbledon AC) | Wimbledon | 11.05.1997 |
(96) | 48.66 | Omari Carr-Miller (U17) | (Croydon Harriers) | Bedford | 21.08.2011 |
(97) | 48.67 | Ocean Schwartz (U20) | (Holland Sports AC) | Bromley | 2.07.2016 |
(98) | 48.69 | Omar Parsons (U20) | (Shaftesbury Barnet Harriers) | Watford | 13.07.2016 |
(99) | 48.7y | Raymond Eve | (Mitcham AC) | Redhill | 8.06.1963 |
| 48.70 | Phil Goedluck | (Belgrave Harriers) | Bedford | 17.09.1994 |
| 48.7 | Richard David (U20) | (Belgrave Harriers) | Tooting Bec | 21.08.1996 |
(102) | 48.73 | Noel Levy | (Belgrave Harriers) | Bedford | 17.08.2002 |
(103) | 48.76 | Lee McLaughlin | (Croydon Harriers) | Newham | 13.05.2015 |
(104) | 48.77 | Ade Odunsi (U20) | (Croydon Harriers) | Crystal Palace | 2.08.1989 |
(105) | 48.8y | John Wilkinson (U23) | (Herne Hill Harriers) | Birmingham | 19.05.1951 |
| 48.8y | Tony Collins (U20) | (Hercules AC) | Hurlingham | 1.07.1967 |
| 48.8 | Chris Harris | (Woking AC) | Woking | 17.08.1996 |
(108) | 48.85 | Simon Leary | (Caledon Pk) | Edinburgh | 20.07.1991 |
(109) | 48.86 | Joe Godsell | (Blackheath & Bromley Harriers AC) | Loughborough | 21.05.2006 |
(110) | 48.88 | Joshua Pearson (U17) | (Windsor, Slough, Eton & Hounslow AC) | Reading | 29.04.2018 |
(111) | 48.89 | Gavin Mason (U20) | (Belgrave Harriers) | Lin. Christie | 2.07.1994 |
(112) | 48.9y | Colin Buchanan | (Herne Hill Harriers) | | 14.05.1957 |
| 48.9y | Ollie Baggott | (Surrey AC) | Motspur Park | 30.05.1964 |
| 48.9y | Arthur Gibbons | (Cambridge Harriers) | Ilford | 27.06.1964 |
| 48.9 | Allan Cord | (Herne Hill Harriers) | Motspur Park | 30.05.1981 |
| 48.9 | John Gladwin (U20) | (Belgrave Harriers) | Windsor | 5.06.1982 |
| 48.9 | Paul Batten | (Essex Beagles) | Motspur Park | 21.05.1983 |
| 48.9 | Sean Hall | (Hercules Wimbledon AC) | Wimbledon | 11.06.2014 |
(119) | 48.91 | Greg Cackett | (Belgrave Harriers) | Clermont, FL, USA | 26.04.2014 |
(120) | 48.95 | Josh Wood | (Herne Hill Harriers) | Bedford | 31.08.1997 |
(121) | 48.96 | Isaac Ogunlade | (Herne Hill Harriers) | Stratford (CT) | 14.08.2022 |
(122) | 49.0y | John Parlett | (Dorking St Paul's AC) | Motspur Park | 10.07.1948 |
| 49.0y | Roy Frampton | (South London Harriers) | Uxbridge | 6.07.1955 |
| 49.0y | James Perriss (U20) | (Hercules AC) | Motspur Park | 3.06.1961 |
| 49.0y | Terry Keen | (Hercules AC) | Motspur Park | 20.07.1963 |
| 49.0y | Mike Varah (U23) | (Hercules AC) | Hurlingham | 3.09.1966 |
| 49.0 | Stuart Paton (U23) | (Belgrave Harriers) | Windsor | 8.07.1984 |
(128) | 49.01 | Max Mondelli | (Hercules Wimbledon AC) | Stratford (CT) | 13.08.2023 |
(129) | 49.05 | Romell Glave | (Croydon Harriers) | Hornchurch | 7.04.2024 |
(130) | 49.09 | Samuel Mowa (U20) | (Blackheath & Bromley Harriers AC) | Kingston | 10.06.2023 |
(131) | 49.1y | George Nicol | (Polytechnic Harriers) | Stamford Bridge | 5.07.1913 |
| 49.1y | Brian Hewson | (Mitcham AC) | Croydon | 18.06.1960 |
| 49.1 | Tony Harris (U23) | (Mitcham AC) | Graz, AUT | 10.08.1961 |
| 49.10 | Alex O'Callaghan-Brown (U20) | (Blackheath & Bromley Harriers AC) | Bromley | 22.08.2020 |
(135) | 49.11 | Jack Dickson (U20) | (Kingston AC & Polytechnic Harriers) | Kingston | 3.07.2021 |
(136) | 49.12 | Trevor Llewelyn | (Blackheath Harriers) | Crystal Palace | 5.08.1987 |
| 49.12 | Matt Threadgold (U23) | (Belgrave Harriers) | Loughborough | 24.04.2010 |
(138) | 49.14 | Ricky Lutakome (U20) | (Sutton & District AC) | Bromley | 10.07.2017 |
(139) | 49.18 | George Pittwood (U20) | (Walton AC) | Kingston | 11.05.2024 |
(140) | 49.2y | John Carter | (Sutton & Cheam Harriers) | | 1.06.1957 |
| 49.2y | Henry Holland (U20) | (South London Harriers) | Motspur Park | 30.05.1959 |
| 49.2y | Jan Luitz (U20) | (Epsom Coll) | Blackburn | 9.07.1966 |
| 49.2 | P J Speed-Andrews | (Kingston AC & Polytechnic Harriers) | Croydon | 16.05.1993 |
| 49.2 | Jonathon Squirrell (U23) | (Belgrave Harriers) | Croydon | 12.05.1996 |
(145) | 49.21 | Sean Richards (U20) | (Herne Hill Harriers) | Crystal Palace | 23.06.1985 |
(146) | 49.22 | Jason Hoyle | (Thames Valley Harriers) | Kingston | 14.05.2023 |
(147) | 49.24 | David Morrish (U23) | (Croydon Harriers) | Crystal Palace | 17.06.1989 |
| 49.24 | Edward Coats (U20) | (Guildford & Godalming AC) | Arles, FRA | 29.05.1999 |
(149) | 49.26 | Stefan Richards (U20) | (Epsom & Ewell Harriers) | Lee Valley | 17.07.2010 |
(150) | 49.29 | Ethan Curran (U20) | (Crawley AC) | Chelmsford | 17.06.2023 |
(151) | 49.3y | Roger Dollimore (U20) | (South London Harriers) | | 30.05.1962 |
| 49.3y | David Cocks (U23) | (Belgrave Harriers) | Norbiton | 15.06.1963 |
| 49.3y | Michael Hill | (Mitcham AC) | Motspur Park | 21.05.1966 |
| 49.3 | D Hart | (Belgrave Harriers) | Croydon | 19.05.1991 |
| 49.3 | Jon Sanders | (Kingston AC & Polytechnic Harriers) | Croydon | 17.05.1992 |
| 49.30 | Craig Cox (M35) | (Crawley AC) | Brussels, BEL | 25.05.2024 |
(157) | 49.31 | Thomas Westerman (U20) | (Guildford & Godalming AC) | Kingston | 12.05.2018 |
(158) | 49.32 | Keeran Sriskandarajah (U20) | (Herne Hill Harriers) | Kingston | 11.05.2024 |
(159) | 49.37 | Philip Kastner (U23) | (Walton AC) | Montpellier, FRA | 29.05.2021 |
(160) | 49.4y | Christopher Marchese (U20) | (Surrey AC) | Motspur Park | 30.04.1966 |
| 49.4 | Steve White (U20) | (Belgrave Harriers) | Crystal Palace | 17.09.1969 |
| 49.4 | Patrick Johnson (U20) | (Herne Hill Harriers) | | 12.06.1971 |
| 49.4 | Junior Huie | (South London Harriers) | Tooting Bec | 20.05.1989 |
| 49.4 | Oli Aitchison (U23) | (Aldershot, Farnham & District AC) | Woking | 30.06.2012 |
(165) | 49.42 | Moyo Sankofa (U17) | (Herne Hill Harriers) | Watford | 25.05.2003 |
(166) | 49.46 | Zachary Crowther (U20) | (Herne Hill Harriers) | Bromley | 21.05.2024 |
(167) | 49.5y | Ernest Haley | (Herne Hill Harriers) | Stamford Bridge | 28.06.1913 |
| 49.5y | Alan Groves (U23) | (Kingston AC) | | 23.09.1961 |
| 49.5y | Michael Hazell (U20) | (Walton AC) | Camberley | 12.06.1965 |
| 49.5y | Les Granite (U23) | (Croydon Harriers) | | ??.??1967 |
| 49.5 | M Clarke | (Guildford & Godalming AC) | Motspur Park | 13.05.1978 |
| 49.5 | Jean-Paul Fernee (U17) | (Mitcham AC) | Crystal Palace | 16.07.1978 |
| 49.5 | N Knight (U20) | (Collingwood AC) | Brighton | 19.07.1981 |
| 49.5 | Andrew Watson | (Woking AC) | Battersea Pk | 3.06.2006 |
(175) | 49.54 | Noah Ridgeon (U20) | (Belgrave Harriers) | Monaco, FRA | 17.04.2024 |
| 49.54 | Fred Hake (U17) | (Herne Hill Harriers) | Kingston | 12.05.2024 |
(177) | 49.57 | Max Perez-Diaz | (Belgrave Harriers) | Kingston | 12.05.2024 |
(178) | 49.6y | David Jacobs | (Herne Hill Harriers) | Windsor | 10.08.1913 |
| 49.6y | Charles Jones | (Belgrave Harriers) | Hurlingham | 6.06.1959 |
| 49.6y | James Avis (U20) | (Deptford Park AC) | White City, London | 15.08.1959 |
| 49.6y | Peter Cornell | (Hercules AC) | | 14.08.1961 |
| 49.6y | Bob Harvey | (Croydon Harriers) | Motspur Park | 26.06.1962 |
| 49.6y | Brian Hallett | (Mitcham AC) | Carshalton | 1.09.1962 |
| 49.6y | Leslie Taylor (U20) | (Guildford & Godalming AC) | Hurlingham | 13.08.1966 |
| 49.6y | David Marchese (U20) | (Surrey AC) | Motspur Park | 10.06.1967 |
| 49.6y | Jim Vivian (U20) | (Belgrave Harriers) | Crystal Palace | 23.08.1967 |
| 49.6 | Bill Mollineaux | (Herne Hill Harriers) | Crystal Palace | 3.09.1969 |
| 49.6 | Richard Nandolo | (Croydon Harriers) | | ??.??1971 |
| 49.6 | Stephen Mitchell (U17) | (Epsom & Ewell Harriers) | Croydon | 15.05.1994 |
| 49.6 | Dwayne Dowding | (Hercules Wimbledon AC) | Tooting Bec | 2.07.2008 |
(191) | 49.62 | Thomas Leacock (U23) | (Woking AC) | Manchester (SC) | 29.04.2023 |
(192) | 49.63 | Owen Heard (U20) | (Harrow AC) | Nuneaton | 30.08.2020 |
(193) | 49.68 | Harvey Stainthorpe | (Croydon Harriers) | Croydon | 13.07.2019 |
(194) | 49.7y | D Wheeler | (Farnham AC) | Croydon | 3.07.1957 |
| 49.7y | D Braham | (Herne Hill Harriers) | Brighton | 19.05.1962 |
| 49.7 | Mike Fromant (U23) | (Mitcham AC) | | ??.??1973 |
| 49.7 | Martin Scott (U20) | (Belgrave Harriers) | Motspur Park | 18.05.1974 |
| 49.7 | Phil Norgate (U20) | (Epsom & Ewell Harriers) | Crystal Palace | 1.06.1980 |
| 49.7 | Tim Brennan (U20) | (Sutton & Cheam Harriers) | Cobham | 23.07.1980 |
| 49.7 | Josephus Thomas (U23) | (Kingston AC & Polytechnic Harriers) | Tooting Bec | 14.05.1988 |
| 49.7 | Jamie McCullagh | (Kingston AC & Polytechnic Harriers) | Tooting Bec | 17.06.2006 |
| 49.7 | Ollie King | (Woking AC) | Parliament Hill | 30.07.2011 |
(203) | 49.71 | George Thatcher (U20) | (Croydon Harriers) | Kingston | 12.05.2007 |
(204) | 49.73 | Kareem Selman-Jackson | (Belgrave Harriers) | Kingston | 12.05.2024 |
(205) | 49.74 | Will Stapleton (U20) | (Kingston AC & Polytechnic Harriers) | Sportcity | 1.06.2019 |
(206) | 49.8 | Edwin Montague | (South London Harriers) | White City, London | 22.07.1908 |
| 49.8y | W R Lane | (South London Harriers) | Motspur Park | 30.05.1959 |
| 49.8y | J Marsh | (Hercules AC) | | 23.09.1961 |
| 49.8y | N Toward | (Redhill & Reigate AC) | Motspur Park | 8.06.1968 |
| 49.8 | Steve Moriarty (U20) | (Epsom & Ewell Harriers) | Motspur Park | 15.05.1976 |
| 49.8 | George Sarkodie (U20) | (Croydon Harriers) | Copthall | 5.07.1986 |
| 49.8 | Jason Davenhill (U20) | (Trinity School, Croydon) | Tooting Bec | 15.05.1988 |
| 49.8 | Jason Hallifax (U23) | (Hercules Wimbledon AC) | Luton | 11.06.1989 |
(214) | 49.81 | Nimi Kolade (U20) | (Hercules Wimbledon AC) | Tooting Bec | 10.08.2016 |
| 49.81 | Micah Francis-Dwyer (U20) | (Croydon Harriers) | Croydon | 28.05.2017 |
| 49.81 | Klaysen Brandao Kafuti (U17) | (Croydon Harriers) | Kingston | 11.06.2022 |
(217) | 49.82 | Hugo Fleming (U23) | (Walton AC) | Newham | 3.08.2016 |
(218) | 49.83 | Christopher Hall | (Kingston AC & Polytechnic Harriers) | Kingston | 23.04.2011 |
(219) | 49.85 | Reiss Bowen-Deans (U23) | (Herne Hill Harriers) | Kingston | 9.05.2010 |
(220) | 49.86 | Hayden Christian (U20) | (Guildford & Godalming AC) | Stratford (CT) | 13.08.2023 |
(221) | 49.89 | Sam Talbot (U20) | (Exeter Harriers) | Street | 29.04.2017 |
(222) | 49.9y | George Dunckley (U23) | (Belgrave Harriers) | Stamford Bridge | 4.09.1926 |
| 49.9y | Tommy Hampson | (Achilles Club) | White City, London | 2.07.1932 |
| 49.9y | Norman Lloyd (U23) | (Mitcham AC) | Motspur Park | 15.06.1955 |
| 49.9y | R S-Pennink (U20) | (Oxford University) | | 17.05.1962 |
| 49.9y | J Avis | (Deptford Park AC) | Welwyn Garden City | 7.07.1962 |
| 49.9y | J A Avis | (Deptford Park AC) | Motspur Park | 30.05.1964 |
| 49.9y | K Hylands | (Hercules Wimbledon AC) | Ewell Court | 1.06.1968 |
| 49.9y | Andrew Kennedy (U20) | (Whitgift School, Croydon) | Motspur Park | 15.06.1968 |
| 49.9 | Cliff Brooks | (Belgrave Harriers) | Motspur Park | 8.06.1972 |
| 49.9 | Charlie Gillett | (Belgrave Harriers) | Haringey | 26.07.1975 |
| 49.9 | Dick Addison (U17) | (Belgrave Harriers) | Croydon | 24.04.1983 |
| 49.9 | A Mitchell (U20) | (Woking AC) | Tooting Bec | 14.05.1988 |
| 49.9 | J Busk | (Belgrave Harriers) | Croydon | 19.05.1991 |
| 49.9 | Carl Shorter (U20) | (Hercules Wimbledon AC) | Crystal Palace | 12.07.1995 |
| 49.9 | Mark Griffin (U23) | (Walton AC) | Croydon | 12.05.1996 |
| 49.9 | Lawrence Dight (U17) | (Croydon Harriers) | Kingston | 12.06.2004 |
| 49.9 | Neil Francis (U20) | (Blackheath & Bromley Harriers AC) | Crawley | 3.05.2008 |
| 49.9 | Ben Penty | (Walton AC) | Walton | 9.06.2012 |
(240) | 49.93 | Robert Watson (U20) | (Woking AC) | Battersea Pk | 13.07.2002 |
(241) | 49.94 | Rikkie Letch (U20) | (Windsor, Slough, Eton & Hounslow AC) | Copthall | 18.04.2010 |
| 49.94 | Reiss Durban-Davison | (Windsor, Slough, Eton & Hounslow AC) | Kingston | 14.05.2017 |
(243) | 49.99 | Ian Grant (U23) | (Croydon Harriers) | Crystal Palace | 3.06.1978 |
| 49.99 | Ethan Dray (U23) | (Walton AC) | Kingston | 12.05.2024 |
(245) | 50.0y | Peter Covey | (Sutton & Cheam Harriers) | Paddington | 7.07.1965 |
| 50.0 | Paul Johnson (U17) | (Herne Hill Harriers) | West London | 5.09.1970 |
| 50.0 | Martin Chuter (U23) | (Aldershot, Farnham & District AC) | Chiswick | 8.06.1975 |
| 50.0 | Brian Dickens (U23) | (Herne Hill Harriers) | Motspur Park | 13.05.1978 |
| 50.0 | G Sagar (U20) | (London AC) | Motspur Park | 12.05.1982 |
| 50.0 | Peter Foster | (Haslemere Border AC) | Kingston | 9.05.1998 |
| 50.0 | Richard Haughton (U20) | (Kingston AC & Polytechnic Harriers) | Tooting Bec | 19.08.1998 |
| 50.00 | Kaspars Kazemaks | (Woking AC) | Clermont, FL, USA | 30.04.2016 |
(253) | 50.03 | Edward Enser (U20) | (Bracknell AC) | Chelmsford | 12.06.2022 |
(254) | 50.04 | Alastair Prenn | (Belgrave Harriers) | Carshalton | 7.09.2019 |
(255) | 50.05 | Neville Harris (U23) | (Sutton & District AC) | Crystal Palace | 14.06.2014 |
| 50.05 | Danny Trowell (U20) | (Epsom & Ewell Harriers) | Kingston | 11.05.2024 |
(257) | 50.10y | Jack George | (South London Harriers) | Stamford Bridge | 7.07.1906 |
| 50.1y | Robert Lindsay | (Blackheath Harriers) | Stamford Bridge | 2.07.1921 |
| 50.1y | Peter Holliday (U20) | (South London Harriers) | | 1.06.1957 |
| 50.1y | Roger Worster | (Herne Hill Harriers) | Southampton | 4.07.1959 |
| 50.1y | David Garden (U20) | (St George's College, Weybridge) | | 1.07.1961 |
| 50.1y | A Johnson | (Deptford Park AC) | Motspur Park | 30.05.1964 |
| 50.1y | Jamie Lindsay (U20) | (Hercules AC) | Norbiton | 23.09.1964 |
| 50.1y | Ed Forman (U20) | (Dorking St Paul's AC) | Motspur Park | 15.06.1968 |
| 50.1y | R Tibbett | (Herne Hill Harriers) | | 4.08.1968 |
| 50.1 | J McGettrick | (Sutton & Cheam Harriers) | Motspur Park | 19.05.1973 |
| 50.1 | Mark Hunter (U20) | (Croydon Harriers) | Crawley | 6.06.1981 |
| 50.1 | T Browne | (Herne Hill Harriers) | Tooting Bec | 13.05.1989 |
| 50.1 | Richard Holt (U20) | (Blackheath Harriers) | Tooting Bec | 21.05.1989 |
| 50.1 | Stephen Vaughan (U20) | (Epsom & Ewell Harriers) | Peterborough | 2.07.1994 |
| 50.1 | Idowu Akindele (U17) | (Sutton & District AC) | Kingston | 12.06.2004 |
| 50.1 | Dominic Parsons (U20) | (Blackheath & Bromley Harriers AC) | Kingston | 29.04.2006 |
(273) | 50.14 | Joseph Massimo (U20) | (Crawley AC) | Eltham | 14.08.2019 |
(274) | 50.17 | Elijah Lyle-Vidal | (Kingston AC & Polytechnic Harriers) | Newham | 29.05.2017 |
(275) | 50.2y | F S Whittingham | (Blackheath Harriers) | Wimbledon | 11.06.1938 |
| 50.2y | Lawrence Woodley | (Hercules AC) | Motspur Park | 3.06.1961 |
| 50.2y | Graham Piggott (U17) | (Wallington County Grammar School) | | 22.07.1961 |
| 50.2y | Mike Soubry (U23) | (Croydon Harriers) | Brighton | 1.09.1962 |
| 50.2y | L R Woodley | (Hercules AC) | Motspur Park | 25.05.1963 |
| 50.2 | L Woodley | (Hercules AC) | Munich, GER | 28.08.1963 |
| 50.2 | P Weston (U20) | (Haslemere Border AC) | Crystal Palace | 17.06.1979 |
| 50.2 | Simon Fairbrother (U23) | (Boxhill Racers) | Horsham | 2.07.1989 |
| 50.2 | A Vaughan | (Kingston AC & Polytechnic Harriers) | Croydon | 19.05.1990 |
| 50.2 | Ola Scott-Boyle (U20) | (Hercules Wimbledon AC) | Wimbledon Park | 23.08.1993 |
(285) | 50.21 | David Awde (M35) | (Woking AC) | Yeovil | 6.07.2019 |
(286) | 50.22 | Oscar Heaney Brufal (U17) | (Blackheath & Bromley Harriers AC) | Bromley | 21.05.2018 |
(287) | 50.24 | Memphis Ayoade (U17) | (Herne Hill Harriers) | Lee Valley | 12.08.2018 |
(288) | 50.25 | Billy Truman (U17) | (Sutton & District AC) | Carshalton | 27.04.2024 |
(289) | 50.26 | Adam Bellis | (Kingston AC & Polytechnic Harriers) | Derby | 4.08.2007 |
| 50.26 | Thomas Handley (U20) | (Camberley & District AC) | Kingston | 11.05.2019 |
(291) | 50.27 | Alex Lambert (U17) | (Belgrave Harriers) | Haringey | 30.05.1999 |
| 50.27 | Sunny Adebanji (U20) | (Herne Hill Harriers) | Battersea Park | 22.06.2011 |
| 50.27 | Sam Atkins (U20) | (Kingston AC & Polytechnic Harriers) | Basingstoke | 11.06.2023 |
(294) | 50.28 | Ryen Rennie (U17) | (Blackheath & Bromley Harriers AC) | Kingston | 12.05.2024 |
(295) | 50.30y | Edgar Mountain (U23) | (Surrey AC) | Cambridge | 11.03.1922 |
| 50.3y | Clay Gibbs | (Herne Hill Harriers) | Walton | 6.06.1953 |
| 50.3y | John Haynes (U17) | (Epsom & Ewell Harriers) | | ??.??1956 |
| 50.3y | Jamie Avis (U20) | (Deptford Park AC) | | 4.08.1958 |
| 50.3y | M Hawley | (Herne Hill Harriers) | | 14.05.1961 |
| 50.3y | Graham Smith (U20) | (Wimbledon AC) | Hull | 21.06.1962 |
| 50.3y | Keith Bish (U17) | (De Burgh School) | | 30.06.1962 |
| 50.3y | John Rathbone (U20) | (Surrey Beagles AC) | | 28.07.1962 |
| 50.3y | D J Spragg | (Surrey AC) | Motspur Park | 30.05.1964 |
| 50.3 | P Crate (U20) | (Epsom & Ewell Harriers) | Crystal Palace | 11.07.1979 |
| 50.3 | Colin Gaynor | (Surrey AC) | Motspur Park | 12.05.1982 |
| 50.3 | L Massy | (Herne Hill Harriers) | Tooting Bec | 16.05.1987 |
| 50.3 | George Munt (U17) | (Sutton & District AC) | Kingston | 10.07.2011 |
| 50.3 | Harry Spawforth (U20) | (Guildford & Godalming AC) | Brighton | 26.07.2015 |
| 50.30 | Harry Grindle (U17) | (Belgrave Harriers) | Bedford | 26.08.2017 |
| 50.3 | Farrell Fabusiwa (U17) | (Croydon Harriers) | Ewell | 7.04.2024 |
(311) | 50.33 | Shemar Ferguson (U20) | (Sutton & District AC) | Eltham | 17.08.2019 |
(312) | 50.34 | Matt Field (U23) | (Kingston AC & Polytechnic Harriers) | Lee Valley | 4.04.2009 |
| 50.34 | Paul Cave (U23) | (unattached) | Pella, IA, USA | 2.04.2015 |
(314) | 50.36 | Ben Wallis (U20) | (Guildford & Godalming AC) | Woking | 6.08.2008 |
(315) | 50.4y | R T Worster | (Herne Hill Harriers) | | 20.07.1957 |
| 50.4y | Maurice Joyce (U20) | (Surrey AC) | Hurlingham | 21.09.1963 |
| 50.4y | John Greatrex (U20) | (South London Harriers) | Battersea Park | 27.06.1965 |
| 50.4y | Simon Lewis (U17) | (Epsom Coll) | | 7.07.1967 |
| 50.4 | David Adams | (Herne Hill Harriers) | Wimbledon Park | 22.08.1970 |
| 50.4 | Michael Carlile (U17) | (Croydon Harriers) | Croydon | 24.04.1983 |
| 50.4 | J-P Fernee | (Epsom & Ewell Harriers) | Motspur Park | 19.05.1984 |
| 50.4 | David Haizelden (U20) | (Sutton & Cheam Harriers) | Motspur Park | 18.05.1985 |
| 50.4 | M Bizio | (Belgrave Harriers) | Battersea Park | 27.05.1989 |
| 50.4 | Eshref Hassan (U23) | (Belgrave Harriers) | Kingston | 8.05.1999 |
| 50.4 | Richard Aspden | (Belgrave Harriers) | Copthall | 5.05.2007 |
| 50.4 | Sylvester Akpalara (U17) | (Herne Hill Harriers) | Battersea Park | 12.06.2010 |
(327) | 50.41 | Jack Pearce (U20) | (Tonbridge AC) | Kingston | 9.06.2007 |
(328) | 50.44 | Rob Hall (U17) | (Windsor, Slough, Eton & Hounslow AC) | Woking | 1.08.2012 |
(329) | 50.47 | Joe van der Toorn (U23) | (Belgrave Harriers) | Battersea | 22.07.2009 |
| 50.47 | Adam Coates (U20) | (Epsom & Ewell Harriers) | Kingston | 11.05.2019 |
| 50.47 | Daniel Woodburn | (Belgrave Harriers) | Tooting | 25.05.2024 |
(332) | 50.49 | Tyri Donovan (U20) | (Epsom & Ewell Harriers) | Tooting Bec | 10.08.2016 |
(333) | 50.5y | John Major | (London AC) | Tolworth | 11.06.1927 |
| 50.5y | H Heins (U20) | (Herne Hill Harriers) | | 24.07.1957 |
| 50.5y | Roy Gardener (U20) | (Dorking St Paul's AC) | Motspur Park | 31.05.1958 |
| 50.5y | H Martin | (Hercules AC) | | 21.06.1959 |
| 50.5y | P Sparks (U20) | (Walton AC) | Hurlingham | 22.09.1962 |
| 50.5 | Steve Simson (U17) | (Mitcham AC) | Crystal Palace | 9.07.1971 |
| 50.5 | E Foreman | (Oxford University) | Motspur Park | 8.06.1972 |
| 50.5 | M Cropper (U20) | (Bracknell AC) | Motspur Park | 12.05.1979 |
| 50.5 | Noel Goode (U17) | (Croydon Harriers) | Kirkby | 12.07.1980 |
| 50.5 | Michael Serra (U20) | (Waverley Harriers) | Woking | 16.08.1995 |
| 50.5 | Oweka Wanogho (U17) | (Croydon Harriers) | Norman Pk | 22.07.2007 |
| 50.5 | Derek Paisley (M35) | (Blackheath & Bromley Harriers AC) | Kingston | 12.08.2009 |
| 50.5 | Austin Ferns | (Hercules Wimbledon AC) | Tonbridge | 31.07.2010 |
| 50.50 | AJ Boyce (U23) | (Herne Hill Harriers) | Crystal Palace | 1.05.2013 |
| 50.5 | Adam Thompson | (Herne Hill Harriers) | Kingston | 7.05.2022 |
(348) | 50.52 | Amir Sultan-Edwards (U15) | (Blackheath & Bromley Harriers AC) | Lee Valley | 28.04.2018 |
(349) | 50.54 | David Moulton (U17) | (South London Harriers) | Sheffield | 15.08.1998 |
| 50.54 | Thomas Ashby (U23) | (Herne Hill Harriers) | Tooting | 23.07.2011 |
| 50.54 | George Mears (U17) | (Guildford & Godalming AC) | Basingstoke | 17.06.2017 |
| 50.54 | Will Panes (U20) | (Epsom & Ewell Harriers) | Kingston | 10.06.2023 |
(353) | 50.6y | Ronald Ede (U23) | (Epsom & Ewell Harriers) | Motspur Park | 13.07.1946 |
| 50.6y | N H Dangerfield (U20) | (St Albans City) | Motspur Park | 2.06.1951 |
| 50.6y | J A Haynes (U20) | (Polytechnic Harriers) | Motspur Park | 31.05.1958 |
| 50.6y | Bill Holland (U17) | (South London Harriers) | Houghton-le-Spring | 26.07.1958 |
| 50.6y | Barry Cook (U20) | (Surrey AC) | Motspur Park | 30.05.1959 |
| 50.6y | M J McCarthy | (Walton AC) | | 6.08.1959 |
| 50.6y | M Ribeiro | (Herne Hill Harriers) | | 13.06.1961 |
| 50.6y | D Griffiths | (South London Harriers) | | 23.06.1961 |
| 50.6y | R Eve | (Mitcham AC) | | 9.09.1961 |
| 50.6y | P Hiscock (U20) | (Herne Hill Harriers) | Hurlingham | 4.09.1965 |
| 50.6y | Nigel Jackman | (Sutton & Cheam Harriers) | | 31.07.1968 |
| 50.6 | Erwin Hartel (U20) | (St Georges) | Motspur Park | 7.06.1969 |
| 50.6 | D Bargery (U20) | (Herne Hill Harriers) | Crystal Palace | 20.06.1971 |
| 50.6 | C Rogers (U20) | (St. Josephs Col) | Motspur Park | 10.06.1972 |
| 50.6 | D Anderson | (London AC) | Motspur Park | 13.05.1978 |
| 50.6 | W.Willson (U20) | (Belgrave Harriers) | Motspur Park | 18.05.1985 |
| 50.6 | M Jackson | (Southampton & Eastleigh AC) | Motspur Park | 18.05.1985 |
| 50.6 | C Bleasdale (U20) | (Guildford & Godalming AC) | Tooting Bec | 17.05.1987 |
| 50.6 | Mark Purser (U23) | (Croydon Harriers) | Croydon | 16.05.1993 |
| 50.6 | Gary Parker (U17) | (Aldershot, Farnham & District AC) | Kingston | 12.06.1999 |
| 50.6 | Nicholas Hendrix (U20) | (St Mary's Richmond AC) | Crawley | 22.05.2016 |
| 50.60 | Rhys Chadwick (U20) | (Woking AC) | Kingston | 11.05.2024 |
(375) | 50.61 | Caspar Eliot | (Bristol&West) | Leigh | 5.05.2018 |
| 50.61 | Elliot Draper | (Croydon Harriers) | Sotteville les Rouen, FRA | 6.05.2018 |
(377) | 50.64 | Sean Rafique (U23) | (Windsor, Slough, Eton & Hounslow AC) | Durham NC, USA | 21.04.2017 |
(378) | 50.66 | Melvyn Anukam (U20) | (Belgrave Harriers) | Kingston | 10.05.2008 |
(379) | 50.67 | Luke Dronfield (U20) | (Blackheath & Bromley Harriers AC) | Eton | 10.09.2022 |
(380) | 50.68 | James Garnier (U20) | (Hercules Wimbledon AC) | Oxford | 15.05.2010 |
| 50.68 | George Rees (U17) | (Kingston AC & Polytechnic Harriers) | Hendon | 9.06.2018 |
(382) | 50.69 | Adam Taylor (U20) | (Sutton & District AC) | Tooting Bec | 18.08.2012 |
| 50.69 | Richard Beak | (Woking AC) | Portsmouth | 3.04.2022 |
(384) | 50.7y | Paul Ellis (U20) | (Polytechnic Harriers) | | 12.08.1959 |
| 50.7y | Terry Naish (U20) | (Sutton & Cheam Harriers) | | 21.08.1961 |
| 50.7y | Daniel Wiseman (U20) | (Belgrave Harriers) | Motspur Park | 25.05.1963 |
| 50.7y | S Chard (U20) | (Woking AC) | Motspur Park | 25.05.1963 |
| 50.7y | David Spragg | (Surrey AC) | Motspur Park | 29.05.1965 |
| 50.7 | Ian Wright | (Croydon Harriers) | Gateshead | 16.08.1986 |
| 50.7 | R Wingfield | (Walton AC) | Tooting Bec | 20.05.1989 |
| 50.7 | John Heanley (U20) | (Windsor, Slough & Eton AC) | Sutton | 29.08.1999 |
| 50.7 | Derek King | (Newham & Essex Beagles) | Croydon | 13.05.2000 |
(393) | 50.71 | Patrick Lucas (U20) | (Croydon Harriers) | Eltham | 24.06.2015 |
(394) | 50.75 | Ricardo King (U17) | (Croydon Harriers) | Kingston | 8.06.2013 |
| 50.75 | Ross Whelan (U23) | (Hercules Wimbledon AC) | Kingston | 21.04.2018 |
(396) | 50.76 | Joss Garnier (U17) | (Epsom & Ewell Harriers) | Ashford | 20.08.2006 |
(397) | 50.77 | James Moroney | (Kingston AC & Polytechnic Harriers) | Kingston | 10.05.2008 |
| 50.77 | Simeon Ramsey-Graham (U20) | (Herne Hill Harriers) | Battersea Pk | 7.05.2011 |
(399) | 50.78 | Andrew Lomax (U20) | (Walton AC) | Watford | 15.07.2015 |
(400) | 50.8 | C Golledge | (Mitcham AC) | | 8.08.1961 |
| 50.8 | D Davies | (Surrey AC) | Motspur Park | 7.06.1969 |
| 50.8 | S Morton | (South London Harriers) | Motspur Park | 7.06.1969 |
| 50.8 | Tony Farrell (U20) | (Surrey Beagles AC) | Motspur Park | 15.05.1976 |
| 50.8 | G Henry (U20) | (Hercules Wimbledon AC) | Motspur Park | 10.05.1979 |
| 50.8 | M Reynolds (U20) | (Mitcham & Sutton AC) | Croydon | 16.05.1992 |
| 50.8 | Robert Milner (U17) | (Belgrave Harriers) | Woking | 4.09.1994 |
| 50.8 | Andrew Bilby (U17) | (Epsom & Ewell Harriers) | Croydon | 11.05.1996 |
| 50.8 | Gary Golbourne (U20) | (N Croydon Sc) | Kingston | 13.06.1998 |
| 50.8 | Jonny Hay (U20) | (Aldershot, Farnham & District AC) | Bournemouth | 31.07.2010 |
(410) | 50.85 | Justin Green | (Kingston AC & Polytechnic Harriers) | Cardiff | 11.05.2013 |
(411) | 50.86 | Maris Kuklis | (Kingston AC & Polytechnic Harriers) | Kingston | 13.05.2007 |
(412) | 50.87 | Hamed Agboke | (Hercules Wimbledon AC) | Kingston | 25.05.2013 |
(413) | 50.88 | Max Coyle (U17) | (Reigate Priory AC) | Kingston | 14.06.2014 |
(414) | 50.9 | Anthony Farrell (U17) | (Surrey Beagles AC) | Crystal Palace | 15.06.1974 |
| 50.9 | Derrick Williams | (Belgrave Harriers) | Croydon | 23.04.1983 |
| 50.9 | A Malcolm (U20) | (Hercules Wimbledon AC) | Motspur Park | 21.05.1983 |
| 50.9 | Shaun Hannan (U20) | (Thomas More School, Purley) | Motspur Park | 21.05.1983 |
| 50.9 | Maurice Evans (U23) | (Herne Hill Harriers) | Motspur Park | 19.05.1984 |
| 50.9 | Tony Bignell (U20) | (Epsom & Ewell Harriers) | Croydon | 20.05.1990 |
| 50.9 | Martin Giraud (U20) | (Hercules Wimbledon AC) | Tooting Bec | 21.08.1996 |
| 50.9 | Dotun Akinbogun | (Belgrave Harriers) | Croydon | 13.05.2000 |
| 50.9 | Darren Wollen (U23) | (Croydon Harriers) | Kingston | 10.05.2009 |
| 50.9 | Chris Hall (U20) | (Kingston AC & Polytechnic Harriers) | Walton | 20.05.2009 |
| 50.9 | Richard Smeaton (U20) | (Kingston AC & Polytechnic Harriers) | Milton Keynes | 24.05.2009 |
| 50.90 | Columba Blango (U23) | (South London Harriers) | Eltham | 20.08.2014 |
| 50.9 | Kyron-Bailee Burke (U20) | (Croydon Harriers) | Brighton | 26.05.2024 |
(427) | 50.91 | Elliot Bailey | (Croydon Harriers) | Bromley | 12.06.2023 |
(428) | 50.92 | Drew Burridge (U20) | (Blackheath & Bromley Harriers AC) | Gillingham | 3.05.2021 |
(429) | 50.94 | Joshua Martin (U17) | (Hercules Wimbledon AC) | Horspath | 16.07.2022 |
(430) | 50.95 | Matthew de Rossi (U17) | (Belgrave Harriers) | Tooting Bec | 27.08.2016 |
(431) | 50.96 | Ayrton Richards (U20) | (Epsom & Ewell Harriers) | Kingston | 9.05.2009 |
(432) | 50.98 | Luke Sargeant | (Crawley AC) | Kingston | 26.05.2012 |
(433) | 50.99 | Jonty Mitchell (U20) | (Guildford & Godalming AC) | Eltham | 17.08.2019 |
(434) | 51.0 | A Rabey (U20) | (Bracknell AC) | Motspur Park | 16.05.1981 |
| 51.00 | Paul Roberts (U15) | (Mitcham AC) | Crystal Palace | 22.07.1984 |
| 51.0 | M Bazire | (Belgrave Harriers) | Motspur Park | 14.05.1985 |
| 51.0 | M Dann | (Hercules Wimbledon AC) | Tooting Bec | 16.05.1987 |
| 51.0 | Daniel Lambert (U17) | (Belgrave Harriers) | Crawley | 5.08.2001 |
| 51.0 | Callum Todd (U17) | (Windsor, Slough, Eton & Hounslow AC) | Woking | 3.08.2011 |
| 51.0 | Alex Hobbs (U20) | (Guildford & Godalming AC) | Kingston | 29.06.2014 |
440 athletes with performances of 51.00 or better. |
Other marks |
| 45.98A | Thomas Staines (U23) | (Colorado State ) | Colorado Springs CO, USA | 4.05.2018 |
| 49.6ye | Ronald Ede (U23) | (Epsom & Ewell Harriers) | Birmingham | 25.05.1946 |
| 50.52* | Amir Sultan-Edwards (U15) | (Blackheath & Bromley Harriers AC) | Lee Valley | 28.04.2018 |