London World Championships 4-13 August 2017 RESULTS 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 43.03 Wayde VAN NIEKERK RSA 24 Rio de Janeiro (Estádio Olímpico) 14 Aug 2016 Championships Record CR 43.18 Michael JOHNSON USA 32 Sevilla (La Cartuja) 26 Aug 1999 World Leading WL 43.62 Wayde VAN NIEKERK RSA 25 Lausanne (Pontaise) 6 Jul 2017 Area Record AR National Record NR Personal Best PB Season Best SB 6 August 2017 19:40 START TIME 19° C 56 % Heat 1 3 TEMPERATURE HUMIDITY

PLACE NAME COUNTRY DATE of BIRTH LANE RESULT REACTION Fn 1 Steven GARDINER BAH 12 Sep 95 5 43.89 Q NR 0.186 2 Nathon ALLEN JAM 28 Oct 95 6 44.19 Q PB 0.161 3 USA 7 May 95 7 44.51 q 0.137 4 Kévin BORLÉE BEL 22 Feb 88 9 45.10 0.146 5 Wilbert LONDON III USA 17 Aug 97 4 45.12 0.181 6 Óscar HUSILLOS ESP 18 Jul 93 3 45.16 (.160) PB 0.163 7 Rafal OMELKO POL 16 Jan 89 2 45.37 0.201 8 Dwayne COWAN GBR 1 Jan 85 8 45.96 0.144

6 August 2017 19:48 START TIME 19° C 56 % Heat 2 3 TEMPERATURE HUMIDITY

PLACE NAME COUNTRY DATE of BIRTH LANE RESULT REACTION Fn 1 Wayde VAN NIEKERK RSA 15 Jul 92 6 44.22 Q 0.168 2 Baboloki THEBE BOT 18 Mar 97 5 44.33 Q 0.178 3 Abdalelah HAROUN QAT 1 Jan 97 9 44.64 q SB 0.179 4 Matthew HUDSON-SMITH GBR 26 Oct 94 2 44.74 SB 0.142 5 TTO 25 Nov 88 4 45.20 0.151 6 Brian GREGAN IRL 31 Dec 89 8 45.42 0.188 7 LaShawn MERRITT USA 27 Jun 86 7 45.52 0.195 8 Boniface Ontuga MWERESA KEN 13 Nov 93 3 45.93 0.234

6 August 2017 19:56 START TIME 20° C 56 % Heat 3 3 TEMPERATURE HUMIDITY

PLACE NAME COUNTRY DATE of BIRTH LANE RESULT REACTION Fn 1 Isaac MAKWALA BOT 29 Sep 86 5 44.30 Q 0.248 2 Demish GAYE JAM 20 Jan 93 6 44.55 Q PB 0.157 3 Gil ROBERTS USA 15 Mar 89 7 44.84 0.170 4 Jamal WALTON CAY 25 Nov 98 9 45.16 (.157) 0.153 5 Jonathan BORLÉE BEL 22 Feb 88 3 45.23 0.203 6 Pavel MASLÁK CZE 21 Feb 91 2 45.24 0.146 7 TTO 6 Sep 95 8 45.91 0.221 8 Davide RE ITA 16 Mar 93 4 45.95 0.186

ALL-TIME OUTDOOR TOP LIST SEASON OUTDOOR TOP LIST RESULT NAME VENUE DATE RESULT NAME VENUE 2017 43.03 Wayde VAN NIEKERK (RSA)Rio de Janeiro (Estádio Olímpico) 14 Aug 16 43.62 Wayde VAN NIEKERK (RSA) Lausanne (Pontaise) 6 Jul 43.18 Michael JOHNSON (USA) Sevilla (La Cartuja) 26 Aug 99 43.70 Fred KERLEY (USA) Austin (Myers Stadium), TX 26 May 43.29 Harry REYNOLDS (USA) Zürich (Letzigrund) 17 Aug 88 43.84 Isaac MAKWALA (BOT) Monaco (Stade Louis II) 21 Jul 43.45 (USA) Osaka (Nagai Stadium) 31 Aug 07 43.89 Steven GARDINER (BAH) London 6 Aug 43.50 (USA) Barcelona (Estadio Olímpico) 5 Aug 92 44.02 Baboloki THEBE (BOT) Lausanne (Pontaise) 6 Jul 43.65 LaShawn MERRITT (USA) Beijing (National Stadium) 26 Aug 15 44.19 Nathon ALLEN (JAM) London 6 Aug 43.70 Fred KERLEY (USA) Austin (Myers Stadium), TX 26 May 17 44.22 Gil ROBERTS (USA) Sacramento (Hornet Stadium), CA 24 Jun 43.72 Isaac MAKWALA (BOT) La Chaux-de-Fonds (La Charrière) 5 Jul 15 44.47 Wilbert LONDON III (USA) Sacramento (Hornet Stadium), CA 24 Jun 43.74 Kirani JAMES (GRN) Lausanne (Pontaise) 3 Jul 14 44.47 Vernon NORWOOD (USA) Lausanne (Pontaise) 6 Jul 43.81 (USA) New Orleans, LA 26 Jun 92 44.50 (USA) Sacramento (Hornet Stadium), CA 24 Jun

Timing and Measurement by SEIKO AT-400-M-sf----.RS6..v1 Issued at 19:59 on Sunday, 06 August 2017

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