London World Championships 4-13 August 2017 RESULTS 400 Metres Hurdles Men - Semi-Final First 2 in each heat (Q) and the next 2 fastest (q) advance to the Final RECORDS RESULT NAME COUNTRY AGE VENUE DATE World Record WR 46.78 Kevin YOUNG USA 26 Barcelona (Estadio Olímpico) 6 Aug 1992 Championships Record CR 47.18 Kevin YOUNG USA 27 Stuttgart (Gottlieb-Daimler Stadion) 19 Aug 1993 World Leading WL 47.80 Kyron MCMASTER IVB 20 Kingston (NS), JAM 20 May 2017 Area Record AR National Record NR Personal Best PB Season Best SB 7 August 2017 20:20 START TIME 19° C 56 % Heat 1 3 TEMPERATURE HUMIDITY PLACE NAME COUNTRY DATE of BIRTH LANE RESULT REACTION Fn 1 Kerron CLEMENT USA 31 Oct 85 7 48.35 Q 0.156 2 Karsten WARHOLM NOR 28 Feb 96 5 48.43 Q 0.175 3 Juander SANTOS DOM 7 May 95 4 48.59 q PB 0.192 4 Kemar MOWATT JAM 12 Mar 95 3 48.66 q 0.204 5 Abdelmalik LAHOULOU ALG 7 May 92 8 49.33 0.186 6 Patryk DOBEK POL 13 Feb 94 6 49.40 0.158 7 Victor COROLLER FRA 29 Jan 97 2 55.69 0.170 Thomas BARR IRL 24 Jul 92 9 DNS 7 August 2017 20:30 START TIME 19° C 56 % Heat 2 3 TEMPERATURE HUMIDITY PLACE NAME COUNTRY DATE of BIRTH LANE RESULT REACTION Fn 1 TJ HOLMES USA 2 Jul 95 6 49.12 Q 0.187 2 Kariem HUSSEIN SUI 4 Jan 89 2 49.13 Q 0.147 3 Jaheel HYDE JAM 2 Feb 97 7 49.75 0.157 4 Jack GREEN GBR 6 Oct 91 3 49.93 (.927) 0.230 5 Takatoshi ABE JPN 12 Nov 91 4 49.93 (.929) 0.212 6 Mamadou Kasse HANN FRA 10 Oct 86 5 50.35 0.165 7 Aron Kipchumba KOECH KEN 27 Jan 90 9 50.40 0.174 8 Jaak-Heinrich JAGOR EST 11 May 90 8 50.43 0.149 7 August 2017 20:40 START TIME 19° C 56 % Heat 3 3 TEMPERATURE HUMIDITY PLACE NAME COUNTRY DATE of BIRTH LANE RESULT REACTION Fn 1 Abderrahaman SAMBA QAT 5 Sep 95 6 48.75 Q 0.247 2 Yasmani COPELLO TUR 15 Apr 87 4 48.91 Q 0.203 3 Eric FUTCH USA 25 Apr 93 2 49.30 0.150 4 Ludvy VAILLANT FRA 15 Mar 95 5 49.95 0.205 5 José Reynaldo BENCOSME DE LEON ITA 16 May 92 8 50.29 0.186 6 Ricardo CUNNINGHAM JAM 10 Apr 82 3 50.54 0.216 Marcio TELES BRA 27 Jan 94 7 DNF 0.175 Guillermo RUGGERI ARG 26 Mar 92 9 DQ 163.3(a) 0.198 NOTE IAAF Rule 163.3(a) - Lane infringement ALL-TIME OUTDOOR TOP LIST SEASON OUTDOOR TOP LIST RESULT NAME VENUE DATE RESULT NAME VENUE 2017 46.78 Kevin YOUNG (USA) Barcelona (Estadio Olímpico) 6 Aug 92 47.80 Kyron MCMASTER (IVB) Kingston (NS), JAM 20 May 47.02 Edwin MOSES (USA) Koblenz 31 Aug 83 48.02 Kerron CLEMENT (USA) London (Olympic Stadium) 9 Jul 47.03 Bryan BRONSON (USA) New Orleans, LA 21 Jun 98 48.13 Quincy DOWNING (USA) Kingston (NS), JAM 10 Jun 47.10 Samuel MATETE (ZAM) Zürich (Letzigrund) 7 Aug 91 48.18 Eric FUTCH (USA) Sacramento (Hornet Stadium), CA 25 Jun 47.19 Andre PHILLIPS (USA) Seoul (Olympic Stadium) 25 Sep 88 48.24 Yasmani COPELLO (TUR) London (Olympic Stadium) 9 Jul 47.23 Amadou DIA BA (SEN) Seoul (Olympic Stadium) 25 Sep 88 48.25 Karsten WARHOLM (NOR) Oslo (Bislett) 15 Jun 47.24 Kerron CLEMENT (USA) Carson, CA 26 Jun 05 48.26 Michael STIGLER (USA) Sacramento (Hornet Stadium), CA 25 Jun 47.25 Felix SÁNCHEZ (DOM) Paris Saint-Denis (Stade de France) 29 Aug 03 48.31 Abderrahaman SAMBA (QAT) Sasolburg 28 Mar 47.25 Angelo TAYLOR (USA) Beijing (National Stadium) 18 Aug 08 48.33 Rai BENJAMIN (ANT) Eugene (Hayward Field), OR 9 Jun 47.30 Bershawn JACKSON (USA) Helsinki (Olympic Stadium) 9 Aug 05 48.40 Mamadou Kasse HANN (FRA) Genève 10 Jun Timing and Measurement by SEIKO AT-400H-M-sf----.RS6..v1 Issued at 20:45 on Monday, 07 August 2017 Official Partners.