U23 Men 400 Metres (SURREY STANDARD = 51.00)| (1) | 44.60 | Martyn Rooney | (Croydon Harriers) | Beijing, CHN | 19.08.2008 | | (2) | 45.64 | Paul Harmsworth | (Team Solent) | Birmingham | 7.08.1984 | | (3) | 46.21 | David McKenzie | (Croydon Harriers) | Ulm, GER | 4.07.1992 | | (4) | 46.25 | Roy Dickens | (Shaftesbury Harriers) | Oslo, NOR | 11.07.1981 | | (5) | 46.54 | Michael Parper (U20) | (Belgrave Harriers) | Bad Homburg, GER | 7.06.1997 | | (6) | 46.7y | Martin Winbolt Lewis | (Achilles Club) | Motspur Park | 22.06.1968 | | (7) | 47.11 | Darren Bernard | (Herne Hill Harriers) | Northridge, USA | 9.04.1989 | | (8) | 47.13 | Rod Milne | (Guildford & Godalming AC) | | ??.??1979 | | (9) | 47.22 | Ryan Thomas (U20) | (Belgrave Harriers) | Eton | 5.08.2006 | | (10) | 47.24 | James Hilston (U20) | (Belgrave Harriers) | Loughborough | 18.05.1997 | | (11) | 47.3 | David Simpson (U20) | (Croydon Harriers) | Colindale | 14.08.1991 | | (12) | 47.32 | Bob Benn | (Croydon Harriers) | Cwmbran | 12.06.1977 | | (13) | 47.44 | Myles Copeland-Naulty | (Herne Hill Harriers) | Monroe LA, USA | 16.05.2024 | | (14) | 47.57 | Chris McAlister | (Thames Valley Harriers) | Watford | 7.05.2016 | | | 47.57 | Thomas Staines | (Basingstoke & Mid Hants AC) | Azusa CA, USA | 19.04.2019 | | (16) | 47.6y | Mel Cheskin | (Hercules AC) | Boulder CO, USA | 25.04.1964 | | (17) | 47.70 | James Hanson | (Woking AC) | Watford | 20.04.2022 | | (18) | 47.77 | Jamal Rhoden-Stevens | (Shaftesbury Barnet Harriers) | Kingston | 15.05.2016 | | (19) | 47.8 | Alan Laifa | (Croydon Harriers) | Thurrock | 28.07.1985 | | (20) | 47.84 | Jacob Paul | (Windsor, Slough, Eton & Hounslow AC) | Eton | 7.05.2016 | | | 47.84 | Klaysen Kafuti (U20) | (Croydon Harriers) | Chelmsford | 18.06.2023 | | (22) | 47.85 | Louis Burgess (U20) | (Epsom & Ewell Harriers) | Ashford | 18.08.2002 | | (23) | 47.88 | Zak Curran (U20) | (Windsor, Slough, Eton & Hounslow AC) | Woking | 1.08.2012 | | (24) | 47.93 | Dedan Simmons | (Harrow AC) | Watford | 5.07.2003 | | (25) | 47.96 | Josh Street (U17) | (South London Harriers) | Birmingham | 10.07.2010 |
25 athletes with performances of 47.96 or better. | | Other marks | | | 45.98A | Thomas Staines | (Colorado State ) | Colorado Springs CO, USA | 4.05.2018 |
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