(1) | 45.35 | Martyn Rooney | (Croydon Harriers) | Melbourne AUS | 21.03.2006 |
(2) | 46.54 | Michael Parper | (Belgrave Harriers) | Bad Homburg, GER | 7.06.1997 |
(3) | 46.56 | Roy Dickens | (Shaftesbury Harriers) | Crystal Palace | 6.09.1980 |
(4) | 47.22 | Ryan Thomas | (Belgrave Harriers) | Eton | 5.08.2006 |
(5) | 47.24 | James Hilston | (Belgrave Harriers) | Loughborough | 18.05.1997 |
(6) | 47.3 | David Simpson | (Croydon Harriers) | Colindale | 14.08.1991 |
(7) | 47.38 | Conor Kelly | (Hercules Wimbledon AC) | Eton | 9.06.2024 |
(8) | 47.6 | Bob Benn | (Croydon Harriers) | Papendal, NED | 17.08.1974 |
(9) | 47.68 | Paul Harmsworth | (Walton AC) | Crystal Palace | 27.06.1982 |
(10) | 47.8 | David McKenzie | (Croydon Harriers) | Yeovil | 8.07.1988 |
(11) | 47.84 | Klaysen Kafuti | (Croydon Harriers) | Chelmsford | 18.06.2023 |
(12) | 47.85 | Louis Burgess | (Epsom & Ewell Harriers) | Ashford | 18.08.2002 |
(13) | 47.88 | Zak Curran | (Windsor, Slough, Eton & Hounslow AC) | Woking | 1.08.2012 |
(14) | 47.96 | Josh Street (U17) | (South London Harriers) | Birmingham | 10.07.2010 |
(15) | 48.0 | Martin Winbolt Lewis | (London AC) | White City, London | 14.08.1965 |
| 48.0 | Mark Clark | (Guildford & Godalming AC) | Woking | 20.07.1974 |
| 48.0 | Bolaji Odunsi | (Croydon Harriers) | Crystal Palace | 27.06.1982 |
(18) | 48.1 | Rod Milne | (Guildford & Godalming AC) | Aldershot | 30.06.1976 |
| 48.1 | Danny Doyley | (Blackheath & Bromley Harriers AC) | Eton | 13.08.2006 |
(20) | 48.2 | Jack Sam | (Herne Hill Harriers) | Crystal Palace | 20.09.1969 |
(21) | 48.24 | Darren Bernard | (Herne Hill Harriers) | Birmingham | 5.08.1988 |
(22) | 48.3 | Tim Eaton | (Mitcham & Sutton AC) | Croydon | 20.05.1990 |
(23) | 48.31 | Gavin Dublin | (Croydon Harriers) | Nottingham | 13.07.2002 |
| 48.31 | Lolu Oluwole-Ojo | (Windsor, Slough, Eton & Hounslow AC) | Oordegem, BEL | 1.06.2013 |
(25) | 48.4y | John Strachan | (Hercules AC) | Motspur Park | 30.05.1959 |
| 48.4 | Michael Riddell | (Guildford & Godalming AC) | Bracknell | 6.06.1998 |
(27) | 48.44 | Shaun Cooke | (Blackheath & Bromley Harriers AC) | Hendon | 23.08.2015 |
(28) | 48.49 | Jonathan Osbourne (U17) | (Hercules Wimbledon AC) | Bedford | 22.08.2010 |
(29) | 48.5 | David Cocks | (Croydon Harriers) | Crystal Palace | 21.06.1980 |
(30) | 48.51 | Tom Kane | (Epsom & Ewell Harriers) | Crystal Palace | 23.06.1985 |
(31) | 48.6y | Robin Woodland | (Hercules AC) | Hurlingham | 7.09.1957 |
| 48.6 | Nick Lovatt | (Mitcham AC) | White City, London | 14.08.1965 |
| 48.6 | Tony Martin | (Dulwich College) | Crystal Palace | 14.06.1969 |
| 48.6 | Martin Gaston | (Hercules Wimbledon AC) | Croydon | 20.05.1990 |
| 48.6 | Robert Scantlebury | (Hercules Wimbledon AC) | Reading | 2.07.1994 |
(36) | 48.61 | Frederick Afrifa | (Crawley AC) | Kingston | 23.05.2015 |
(37) | 48.66 | Omari Carr-Miller (U17) | (Croydon Harriers) | Bedford | 21.08.2011 |
(38) | 48.67 | Ocean Schwartz | (Holland Sports AC) | Bromley | 2.07.2016 |
(39) | 48.69 | Omar Parsons | (Shaftesbury Barnet Harriers) | Watford | 13.07.2016 |
(40) | 48.7 | Donovan Reid | (Shaftesbury Harriers) | Adelaide, AUS | 7.10.1981 |
| 48.7 | Richard David | (Belgrave Harriers) | Tooting Bec | 21.08.1996 |
(42) | 48.77 | Ade Odunsi | (Croydon Harriers) | Crystal Palace | 2.08.1989 |
(43) | 48.8y | Tony Collins | (Hercules AC) | Hurlingham | 1.07.1967 |
(44) | 48.85 | Owen Parker | (Herne Hill Harriers) | Brighton | 1.08.1981 |
(45) | 48.87 | Dedan Simmons | (Harrow AC) | Bedford | 29.06.2002 |
(46) | 48.88 | Joshua Pearson (U17) | (Windsor, Slough, Eton & Hounslow AC) | Reading | 29.04.2018 |
(47) | 48.89 | Gavin Mason | (Belgrave Harriers) | Lin. Christie | 2.07.1994 |
(48) | 48.9 | John Gladwin | (Belgrave Harriers) | Windsor | 5.06.1982 |
(49) | 49.0y | James Perriss | (Hercules AC) | Motspur Park | 3.06.1961 |
| 49.0 | David Mote | (Surrey AC) | Motspur Park | 14.05.1977 |
(51) | 49.09 | Samuel Mowa | (Blackheath & Bromley Harriers AC) | Kingston | 10.06.2023 |
(52) | 49.10 | Alex O'Callaghan-Brown | (Blackheath & Bromley Harriers AC) | Bromley | 22.08.2020 |
(53) | 49.11 | Jack Dickson | (Kingston AC & Polytechnic Harriers) | Kingston | 3.07.2021 |
(54) | 49.14 | Ricky Lutakome | (Sutton & District AC) | Bromley | 10.07.2017 |
(55) | 49.16 | Samuel Adeyemi | (Herne Hill Harriers) | Bromley | 4.07.2009 |
(56) | 49.18 | George Pittwood | (Walton AC) | Kingston | 11.05.2024 |
(57) | 49.2y | Henry Holland | (South London Harriers) | Motspur Park | 30.05.1959 |
| 49.2y | Jan Luitz | (Epsom Coll) | Blackburn | 9.07.1966 |
(59) | 49.21 | Sean Richards | (Herne Hill Harriers) | Crystal Palace | 23.06.1985 |
(60) | 49.24 | Edward Coats | (Guildford & Godalming AC) | Arles, FRA | 29.05.1999 |
(61) | 49.26 | Stefan Richards | (Epsom & Ewell Harriers) | Lee Valley | 17.07.2010 |
(62) | 49.29 | Ethan Curran | (Crawley AC) | Chelmsford | 17.06.2023 |
(63) | 49.3y | Roger Dollimore | (South London Harriers) | | 30.05.1962 |
(64) | 49.31 | Thomas Westerman | (Guildford & Godalming AC) | Kingston | 12.05.2018 |
(65) | 49.32 | Keeran Sriskandarajah | (Herne Hill Harriers) | Kingston | 11.05.2024 |
(66) | 49.34 | Dominique Richards | (Herne Hill Harriers) | Hendon | 24.08.1997 |
(67) | 49.4y | David Cocks | (Belgrave Harriers) | Wimbledon Park | 30.06.1962 |
| 49.4y | Christopher Marchese | (Surrey AC) | Motspur Park | 30.04.1966 |
| 49.4 | Steve White | (Belgrave Harriers) | Crystal Palace | 17.09.1969 |
| 49.4 | Patrick Johnson | (Herne Hill Harriers) | | 12.06.1971 |
(71) | 49.42 | Moyo Sankofa (U17) | (Herne Hill Harriers) | Watford | 25.05.2003 |
| 49.42 | Jacob Paul | (Windsor, Slough, Eton & Hounslow AC) | Bromley | 22.07.2012 |
(73) | 49.46 | Zachary Crowther | (Herne Hill Harriers) | Bromley | 21.05.2024 |
(74) | 49.47 | Noah Ridgeon | (Belgrave Harriers) | Portsmouth | 1.06.2024 |
(75) | 49.5y | Michael Hazell | (Walton AC) | Camberley | 12.06.1965 |
| 49.5 | Jean-Paul Fernee (U17) | (Mitcham AC) | Crystal Palace | 16.07.1978 |
| 49.5 | N Knight | (Collingwood AC) | Brighton | 19.07.1981 |
| 49.5 | Romell Glave | (Croydon Harriers) | Croydon | 23.07.2017 |
(79) | 49.52 | Tim Kuria | (Woking AC) | Woking | 2.09.2007 |
(80) | 49.54 | Fred Hake (U17) | (Herne Hill Harriers) | Kingston | 12.05.2024 |
(81) | 49.59 | Connor Foley | (Kingston AC & Polytechnic Harriers) | Portsmouth | 1.06.2024 |
(82) | 49.6y | James Avis | (Deptford Park AC) | White City, London | 15.08.1959 |
| 49.6 | Tony Harris | (Mitcham AC) | White City, London | 13.08.1960 |
| 49.6y | Leslie Taylor | (Guildford & Godalming AC) | Hurlingham | 13.08.1966 |
| 49.6y | David Marchese | (Surrey AC) | Motspur Park | 10.06.1967 |
| 49.6y | Jim Vivian | (Belgrave Harriers) | Crystal Palace | 23.08.1967 |
| 49.6 | Stephen Mitchell (U17) | (Epsom & Ewell Harriers) | Croydon | 15.05.1994 |
| 49.6 | Derek Kinlock | (Croydon Harriers) | Croydon | 28.07.2019 |
(89) | 49.63 | Owen Heard | (Harrow AC) | Nuneaton | 30.08.2020 |
(90) | 49.64 | Henry Fisher | (Blackheath & Bromley Harriers AC) | Stratford (CT) | 13.06.2021 |
(91) | 49.7 | Martin Scott | (Belgrave Harriers) | Motspur Park | 18.05.1974 |
| 49.7 | Phil Norgate | (Epsom & Ewell Harriers) | Crystal Palace | 1.06.1980 |
| 49.7 | Tim Brennan | (Sutton & Cheam Harriers) | Cobham | 23.07.1980 |
| 49.70 | Lee McLaughlin (U17) | (Croydon Harriers) | Croydon | 20.05.2007 |
(95) | 49.71 | George Thatcher | (Croydon Harriers) | Kingston | 12.05.2007 |
(96) | 49.74 | Will Stapleton | (Kingston AC & Polytechnic Harriers) | Sportcity | 1.06.2019 |
(97) | 49.77 | Matthew McKenna | (Walton AC) | Guildford | 26.05.2024 |
(98) | 49.8 | Steve Moriarty | (Epsom & Ewell Harriers) | Motspur Park | 15.05.1976 |
| 49.8 | George Sarkodie | (Croydon Harriers) | Copthall | 5.07.1986 |
| 49.8 | Jason Davenhill | (Trinity School, Croydon) | Tooting Bec | 15.05.1988 |
| 49.8 | Andrew Watson | (Woking AC) | Woking | 18.08.2002 |
(102) | 49.81 | Nimi Kolade | (Hercules Wimbledon AC) | Tooting Bec | 10.08.2016 |
| 49.81 | Micah Francis-Dwyer | (Croydon Harriers) | Croydon | 28.05.2017 |
| 49.81 | Klaysen Brandao Kafuti (U17) | (Croydon Harriers) | Kingston | 11.06.2022 |
(105) | 49.86 | Hayden Christian | (Guildford & Godalming AC) | Stratford (CT) | 13.08.2023 |
(106) | 49.89 | Sam Talbot | (Exeter Harriers) | Street | 29.04.2017 |
(107) | 49.9y | R S-Pennink | (Oxford University) | | 17.05.1962 |
| 49.9y | Andrew Kennedy | (Whitgift School, Croydon) | Motspur Park | 15.06.1968 |
| 49.9 | Brian Davey | (Croydon Harriers) | Motspur Park | 9.06.1974 |
| 49.9 | Dick Addison (U17) | (Belgrave Harriers) | Croydon | 24.04.1983 |
| 49.9 | A Mitchell | (Woking AC) | Tooting Bec | 14.05.1988 |
| 49.9 | Carl Shorter | (Hercules Wimbledon AC) | Crystal Palace | 12.07.1995 |
| 49.9 | Lawrence Dight (U17) | (Croydon Harriers) | Kingston | 12.06.2004 |
| 49.9 | Neil Francis | (Blackheath & Bromley Harriers AC) | Crawley | 3.05.2008 |
(115) | 49.93 | Robert Watson | (Woking AC) | Battersea Pk | 13.07.2002 |
(116) | 49.94 | Rikkie Letch | (Windsor, Slough, Eton & Hounslow AC) | Copthall | 18.04.2010 |
(117) | 50.0y | Colin Buchanan | (Herne Hill Harriers) | Tooting Bec | 3.08.1953 |
| 50.0 | Paul Johnson (U17) | (Herne Hill Harriers) | West London | 5.09.1970 |
| 50.0 | G Sagar | (London AC) | Motspur Park | 12.05.1982 |
| 50.0 | Richard Haughton | (Kingston AC & Polytechnic Harriers) | Tooting Bec | 19.08.1998 |
(121) | 50.03 | Edward Enser | (Bracknell AC) | Chelmsford | 12.06.2022 |
(122) | 50.05 | Danny Trowell | (Epsom & Ewell Harriers) | Kingston | 11.05.2024 |
(123) | 50.07 | Rhys Chadwick | (Woking AC) | Woking | 29.05.2024 |
(124) | 50.1y | Peter Holliday | (South London Harriers) | | 1.06.1957 |
| 50.1y | David Garden | (St George's College, Weybridge) | | 1.07.1961 |
| 50.1y | Jamie Lindsay | (Hercules AC) | Norbiton | 23.09.1964 |
| 50.1y | Ed Forman | (Dorking St Paul's AC) | Motspur Park | 15.06.1968 |
| 50.1 | Ian Grant | (Croydon Harriers) | Crystal Palace | 10.08.1975 |
| 50.1 | Junior Huie (U17) | (South London Harriers) | Crystal Palace | 30.05.1981 |
| 50.1 | Mark Hunter | (Croydon Harriers) | Crawley | 6.06.1981 |
| 50.1 | Richard Holt | (Blackheath Harriers) | Tooting Bec | 21.05.1989 |
| 50.1 | Stephen Vaughan | (Epsom & Ewell Harriers) | Peterborough | 2.07.1994 |
| 50.1 | Idowu Akindele (U17) | (Sutton & District AC) | Kingston | 12.06.2004 |
| 50.1 | Dominic Parsons | (Blackheath & Bromley Harriers AC) | Kingston | 29.04.2006 |
(135) | 50.14 | Joseph Massimo | (Crawley AC) | Eltham | 14.08.2019 |
(136) | 50.2y | Graham Piggott (U17) | (Wallington County Grammar School) | | 22.07.1961 |
| 50.2 | Mike Fromant | (Mitcham AC) | | 7.06.1969 |
| 50.2 | P Weston | (Haslemere Border AC) | Crystal Palace | 17.06.1979 |
| 50.2 | Ola Scott-Boyle | (Hercules Wimbledon AC) | Wimbledon Park | 23.08.1993 |
| 50.2 | Hugo Fleming | (Walton AC) | Kingston | 29.06.2014 |
(141) | 50.22 | Oscar Heaney Brufal (U17) | (Blackheath & Bromley Harriers AC) | Bromley | 21.05.2018 |
(142) | 50.24 | Memphis Ayoade (U17) | (Herne Hill Harriers) | Lee Valley | 12.08.2018 |
(143) | 50.25 | Billy Truman (U17) | (Sutton & District AC) | Carshalton | 27.04.2024 |
(144) | 50.26 | Thomas Handley | (Camberley & District AC) | Kingston | 11.05.2019 |
(145) | 50.27 | Alex Lambert (U17) | (Belgrave Harriers) | Haringey | 30.05.1999 |
| 50.27 | Sunny Adebanji | (Herne Hill Harriers) | Battersea Park | 22.06.2011 |
| 50.27 | Sam Atkins | (Kingston AC & Polytechnic Harriers) | Basingstoke | 11.06.2023 |
(148) | 50.28 | Ryen Rennie (U17) | (Blackheath & Bromley Harriers AC) | Kingston | 12.05.2024 |
(149) | 50.3y | John Haynes (U17) | (Epsom & Ewell Harriers) | | ??.??1956 |
| 50.3y | Jamie Avis | (Deptford Park AC) | | 4.08.1958 |
| 50.3y | Graham Smith | (Wimbledon AC) | Hull | 21.06.1962 |
| 50.3y | Keith Bish (U17) | (De Burgh School) | | 30.06.1962 |
| 50.3y | John Rathbone | (Surrey Beagles AC) | | 28.07.1962 |
| 50.3 | P Crate | (Epsom & Ewell Harriers) | Crystal Palace | 11.07.1979 |
| 50.3 | George Munt (U17) | (Sutton & District AC) | Kingston | 10.07.2011 |
| 50.3 | Harry Spawforth | (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 |
(159) | 50.33 | Shemar Ferguson | (Sutton & District AC) | Eltham | 17.08.2019 |
(160) | 50.36 | Ben Wallis | (Guildford & Godalming AC) | Woking | 6.08.2008 |
(161) | 50.37 | Jamal Rhoden-Stevens | (Herne Hill Harriers) | Crystal Palace | 1.05.2013 |
(162) | 50.4y | Terry Higgins | (Herne Hill Harriers) | White City, London | 18.07.1947 |
| 50.4y | Bob Setti | (Herne Hill Harriers) | | 20.07.1957 |
| 50.4y | Maurice Joyce | (Surrey AC) | Hurlingham | 21.09.1963 |
| 50.4y | John Greatrex | (South London Harriers) | Battersea Park | 27.06.1965 |
| 50.4y | Simon Lewis (U17) | (Epsom Coll) | | 7.07.1967 |
| 50.4 | Michael Carlile (U17) | (Croydon Harriers) | Croydon | 24.04.1983 |
| 50.4 | David Haizelden | (Sutton & Cheam Harriers) | Motspur Park | 18.05.1985 |
| 50.4 | Sylvester Akpalara (U17) | (Herne Hill Harriers) | Battersea Park | 12.06.2010 |
(170) | 50.41 | Jack Pearce | (Tonbridge AC) | Kingston | 9.06.2007 |
(171) | 50.44 | Rob Hall (U17) | (Windsor, Slough, Eton & Hounslow AC) | Woking | 1.08.2012 |
(172) | 50.45 | Chris McAlister | (Sutton & District AC) | Tooting Bec | 5.05.2014 |
(173) | 50.47 | Adam Coates | (Epsom & Ewell Harriers) | Kingston | 11.05.2019 |
(174) | 50.49 | Tyri Donovan | (Epsom & Ewell Harriers) | Tooting Bec | 10.08.2016 |
(175) | 50.5y | Clive Ryan | (Belgrave Harriers) | | 24.07.1957 |
| 50.5y | H Heins | (Herne Hill Harriers) | | 24.07.1957 |
| 50.5y | Roy Gardener | (Dorking St Paul's AC) | Motspur Park | 31.05.1958 |
| 50.5y | P Sparks | (Walton AC) | Hurlingham | 22.09.1962 |
| 50.5 | Steve Simson (U17) | (Mitcham AC) | Crystal Palace | 9.07.1971 |
| 50.5 | M Cropper | (Bracknell AC) | Motspur Park | 12.05.1979 |
| 50.5 | Noel Goode (U17) | (Croydon Harriers) | Kirkby | 12.07.1980 |
| 50.5 | Michael Serra | (Waverley Harriers) | Woking | 16.08.1995 |
| 50.5 | Oweka Wanogho (U17) | (Croydon Harriers) | Norman Pk | 22.07.2007 |
(184) | 50.52 | Amir Sultan-Edwards (U15) | (Blackheath & Bromley Harriers AC) | Lee Valley | 28.04.2018 |
(185) | 50.54 | David Moulton (U17) | (South London Harriers) | Sheffield | 15.08.1998 |
| 50.54 | George Mears (U17) | (Guildford & Godalming AC) | Basingstoke | 17.06.2017 |
| 50.54 | Will Panes | (Epsom & Ewell Harriers) | Kingston | 10.06.2023 |
(188) | 50.58 | Max Perez-Diaz | (Kingston AC & Polytechnic Harriers) | Bedford | 4.06.2016 |
(189) | 50.59 | Paul Cave | (Epsom & Ewell Harriers) | Kingston | 14.05.2011 |
(190) | 50.6y | N H Dangerfield | (St Albans City) | Motspur Park | 2.06.1951 |
| 50.6y | J A Haynes | (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 | (Surrey AC) | Motspur Park | 30.05.1959 |
| 50.6y | P Hiscock | (Herne Hill Harriers) | Hurlingham | 4.09.1965 |
| 50.6 | Erwin Hartel | (St Georges) | Motspur Park | 7.06.1969 |
| 50.6 | D Bargery | (Herne Hill Harriers) | Crystal Palace | 20.06.1971 |
| 50.6 | C Rogers | (St. Josephs Col) | Motspur Park | 10.06.1972 |
| 50.6 | W.Willson | (Belgrave Harriers) | Motspur Park | 18.05.1985 |
| 50.6 | C Bleasdale | (Guildford & Godalming AC) | Tooting Bec | 17.05.1987 |
| 50.6 | Eshref Hassan (U17) | (Belgrave Harriers) | Southampton | 15.06.1996 |
| 50.6 | Gary Parker (U17) | (Aldershot, Farnham & District AC) | Kingston | 12.06.1999 |
| 50.6 | Nicholas Hendrix | (St Mary's Richmond AC) | Crawley | 22.05.2016 |
(203) | 50.66 | Joseph Godsell | (Blackheath Harriers) | Kingston | 11.05.2002 |
| 50.66 | Melvyn Anukam | (Belgrave Harriers) | Kingston | 10.05.2008 |
(205) | 50.67 | Luke Dronfield | (Blackheath & Bromley Harriers AC) | Eton | 10.09.2022 |
(206) | 50.68 | James Garnier | (Hercules Wimbledon AC) | Oxford | 15.05.2010 |
| 50.68 | George Rees (U17) | (Kingston AC & Polytechnic Harriers) | Hendon | 9.06.2018 |
(208) | 50.69 | Adam Taylor | (Sutton & District AC) | Tooting Bec | 18.08.2012 |
(209) | 50.7y | Bob Harvey | (Croydon Harriers) | | 9.08.1958 |
| 50.7y | Paul Ellis | (Polytechnic Harriers) | | 12.08.1959 |
| 50.7y | Arthur Gibbons | (Cambridge Harriers) | Southend | 27.08.1960 |
| 50.7y | Terry Naish | (Sutton & Cheam Harriers) | | 21.08.1961 |
| 50.7y | S Chard | (Woking AC) | Motspur Park | 25.05.1963 |
| 50.7y | Daniel Wiseman | (Belgrave Harriers) | Motspur Park | 25.05.1963 |
| 50.7y | Ian Morgan | (Woking AC) | Eltham | 31.08.1963 |
| 50.7 | John Heanley | (Windsor, Slough & Eton AC) | Sutton | 29.08.1999 |
(217) | 50.71 | Patrick Lucas | (Croydon Harriers) | Eltham | 24.06.2015 |
(218) | 50.75 | Ricardo King (U17) | (Croydon Harriers) | Kingston | 8.06.2013 |
(219) | 50.76 | Joss Garnier (U17) | (Epsom & Ewell Harriers) | Ashford | 20.08.2006 |
(220) | 50.77 | Simeon Ramsey-Graham | (Herne Hill Harriers) | Battersea Pk | 7.05.2011 |
(221) | 50.78 | Andrew Lomax | (Walton AC) | Watford | 15.07.2015 |
(222) | 50.8y | R Jackson | (Epsom & Ewell Harriers) | Motspur Park | 20.05.1967 |
| 50.8y | A Brooks | (Belgrave Harriers) | Brighton | 29.07.1967 |
| 50.8 | Tony Farrell | (Surrey Beagles AC) | Motspur Park | 15.05.1976 |
| 50.8 | G Henry | (Hercules Wimbledon AC) | Motspur Park | 10.05.1979 |
| 50.8 | M Reynolds | (Mitcham & Sutton AC) | Croydon | 16.05.1992 |
| 50.8 | Robert Milner (U17) | (Belgrave Harriers) | Woking | 4.09.1994 |
| 50.8 | Ruben Tabares (U17) | (Blackheath Harriers) | Tooting Bec | 25.06.1995 |
| 50.8 | Andrew Bilby (U17) | (Epsom & Ewell Harriers) | Croydon | 11.05.1996 |
| 50.8 | Gary Golbourne | (N Croydon Sc) | Kingston | 13.06.1998 |
| 50.8 | Jonny Hay | (Aldershot, Farnham & District AC) | Bournemouth | 31.07.2010 |
| 50.8 | Harvey Stainthorpe | (Croydon Harriers) | Dartford | 15.08.2015 |
| 50.8 | Ethan Dray | (Walton AC) | Walton | 5.09.2021 |
(234) | 50.86 | Matt Threadgold | (Epsom & Ewell Harriers) | Kingston | 10.05.2008 |
(235) | 50.88 | Max Coyle (U17) | (Reigate Priory AC) | Kingston | 14.06.2014 |
(236) | 50.9y | Michael Hill | (Mitcham AC) | Brighton | 25.08.1962 |
| 50.9y | D Wiseman | (Belgrave Harriers) | | 5.09.1962 |
| 50.9y | Trevor James | (Croydon Harriers) | Hurlingham | 4.09.1965 |
| 50.9 | Anthony Farrell (U17) | (Surrey Beagles AC) | Crystal Palace | 15.06.1974 |
| 50.9 | A Malcolm | (Hercules Wimbledon AC) | Motspur Park | 21.05.1983 |
| 50.9 | Shaun Hannan | (Thomas More School, Purley) | Motspur Park | 21.05.1983 |
| 50.9 | Tony Bignell | (Epsom & Ewell Harriers) | Croydon | 20.05.1990 |
| 50.9 | Martin Giraud | (Hercules Wimbledon AC) | Tooting Bec | 21.08.1996 |
| 50.9 | Chris Hall | (Kingston AC & Polytechnic Harriers) | Walton | 20.05.2009 |
| 50.9 | Richard Smeaton | (Kingston AC & Polytechnic Harriers) | Milton Keynes | 24.05.2009 |
| 50.9 | Oli Aitchison | (Aldershot, Farnham & District AC) | Aldershot | 13.08.2011 |
| 50.9 | Kyron-Bailee Burke | (Croydon Harriers) | Brighton | 26.05.2024 |
(248) | 50.91 | Thomas Ashby | (Herne Hill Harriers) | Birmingham | 20.09.2008 |
(249) | 50.92 | Drew Burridge | (Blackheath & Bromley Harriers AC) | Gillingham | 3.05.2021 |
(250) | 50.94 | Joshua Martin (U17) | (Hercules Wimbledon AC) | Horspath | 16.07.2022 |
250 athletes with performances of 50.94 or better. |
Other marks |
| 50.0ye | Terry Higgins | (Herne Hill Harriers) | Motspur Park | 28.06.1947 |