Muller British Athletics Championships Manchester Regional Arena From Friday 25 June to Sunday 27 June 2021 Men 's 400 Metres ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETI Heats START LIST ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS ATHLETICS Olympic Qualifying 44.90 MARK COMPETITOR NAT AGE Record Date WR43.03 Wayde VAN NIEKERK RSA 24 14 Aug 2016 NR44.36 Iwan THOMAS GBR 23 13 Jul 1997 CR44.36 Iwan THOMAS GBR 23 13 Jul 1997 SR45.52 Timothy BENJAMIN GBR 23 10 Jul 2005 First 1 of each heat (Q) plus 4 fastest times (q) qualified Heat 1 4 25 June 2021 19:25 START COMPETITOR AGE PERSONAL BEST 2021 BEST 2 Krishawn AIKEN 26 47.17 47.17 SHAFTESBURY B 3 Matthew HUDSON-SMITH 26 44.48 45.51 BIRCHFIELD HARRIERS 4 James WILLIAMS 29 46.83 46.83 LIVERPOOL H 5 Rabah YOUSIF BKHEIT 34 44.54 46.35 NEWHAM E B 6 Elliott POWELL 25 47.28 47.89 BIRCHFIELD HARRIERS 7 Ethan BROWN 20 46.44 47.15 BLACKHEATH & BROMLEY 8 Jamal RHODEN-STEVENS 27 46.50 46.50 SHAFTESBURY B Heat 2 4 25 June 2021 19:32 START COMPETITOR AGE PERSONAL BEST 2021 BEST 2 Alex COOPER 18 47.13 47.13 BIRCHFIELD HARRIERS 3 Efe OKORO 29 46.35 46.35 BIRCHFIELD HARRIERS 4 Owen SMITH 26 46.23 46.37 CARDIFF A A C 5 Toby HARRIES 22 46.36 46.85 BRIGHTON PHOENIX 6 Cameron CHALMERS 24 45.64 45.89 GUERNSEY 7 Martyn ROONEY 34 44.45 47.90 CROYDON 8 Charlie CARVELL 16 46.64 46.64 TELFORD A C 1 2 Issued Thursday, 24 June 2021 at 19:04 400 Metres Men - Heats START LIST Heat 3 4 25 June 2021 19:39 START COMPETITOR AGE PERSONAL BEST 2021 BEST 2 Alex HAYDOCK-WILSON 21 45.90 45.90 WSE HOUNSLOW 3 Kevin METZGER 23 46.71 46.86 TRAFFORD 4 Rio MITCHAM 21 47.03 47.03 TELFORD A C 5 Columba BLANGO 28 47.90 47.90 SHAFTESBURY B 6 Edward FAULDS 18 46.68 46.68 RUGBY & NORTHAMPTON 7 Dwayne COWAN 36 45.34 HERCULES WIMBLEDON 8 Niclas BAKER 26 46.37 46.37 CRAWLEY A C Heat 4 4 25 June 2021 19:46 START COMPETITOR AGE PERSONAL BEST 2021 BEST 2 Lee THOMPSON 24 46.20 46.27 CITY of SHEFFIELD AND DEARNE 3 Joe BRIER 22 45.84 45.84 SWANSEA H 4 Lewis DAVEY 20 46.65 46.65 NEWHAM E B 5 Michael OHIOZE 26 46.30 46.30 SHAFTESBURY B 6 Brodie YOUNG 18 46.85 46.85 AIRDRIE HARRIERS A 7 Grant PLENDERLEITH 30 46.34 47.68 CITY of SHEFFIELD AND DEARNE 8 Aidan LEESON 21 47.09 47.09 RUGBY & NORTHAMPTON 2 2 Issued Thursday, 24 June 2021 at 19:04.