London World Championships 4-13 August 2017 SUMMARY 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 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

RANKPLACE HEAT LANE BIB NAME COUNTRY DATE of BIRTH RESULT 1 1 1 7 USA 31 Oct 85 48.35 Q 2 2 1 5 Karsten WARHOLM NOR 28 Feb 96 48.43 Q 3 3 1 4 Juander SANTOS DOM 7 May 95 48.59 q PB 4 4 1 3 Kemar MOWATT JAM 12 Mar 95 48.66 q 5 1 3 6 Abderrahaman SAMBA QAT 5 Sep 95 48.75 Q 6 2 3 4 Yasmani COPELLO TUR 15 Apr 87 48.91 Q 7 1 2 6 TJ HOLMES USA 2 Jul 95 49.12 Q 8 2 2 2 Kariem HUSSEIN SUI 4 Jan 89 49.13 Q 9 3 3 2 Eric FUTCH USA 25 Apr 93 49.30 10 5 1 8 Abdelmalik LAHOULOU ALG 7 May 92 49.33 11 6 1 6 Patryk DOBEK POL 13 Feb 94 49.40 12 3 2 7 JAM 2 Feb 97 49.75 13 4 2 3 Jack GREEN GBR 6 Oct 91 49.93 (.927) 14 5 2 4 Takatoshi ABE JPN 12 Nov 91 49.93 (.929) 15 4 3 5 Ludvy VAILLANT FRA 15 Mar 95 49.95 16 5 3 8 José Reynaldo BENCOSME DE LEON ITA 16 May 92 50.29 17 6 2 5 Mamadou Kasse HANN FRA 10 Oct 86 50.35 18 7 2 9 Aron Kipchumba KOECH KEN 27 Jan 90 50.40 19 8 2 8 Jaak-Heinrich JAGOR EST 11 May 90 50.43 20 6 3 3 Ricardo CUNNINGHAM JAM 10 Apr 82 50.54 21 7 1 2 Victor COROLLER FRA 29 Jan 97 55.69 3 7 Marcio TELES BRA 27 Jan 94 DNF 3 9 Guillermo RUGGERI ARG 26 Mar 92 DQ 163.3(a) 1 9 Thomas BARR IRL 24 Jul 92 DNS

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 (USA) Koblenz 31 Aug 83 48.02 Kerron CLEMENT (USA) London (Olympic Stadium) 9 Jul 47.03 (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 (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 (USA) Beijing (National Stadium) 18 Aug 08 48.33 (ANT) Eugene (Hayward Field), OR 9 Jun 47.30 (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----.RS4..v1 Issued at 20:45 on Monday, 07 August 2017

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