First 2 in each heat (Q) and the next 2 fastest (q)

First 2 in each heat (Q) and next 2 fastest (q) advance to Final

POS Rank Heat BIB ATHLETE COUNTRY RESULTS ms*
1 1 2 792 Kirani JAMES GRNGRN 43.78 Q SB
2 2 2 1378 Muzala SAMUKONGA ZAMZAM 43.81 Q NR
3 1 1 1309 Quincy HALL USAUSA 43.95 Q
4 1 3 705 Matthew HUDSON-SMITH GBRGBR 44.07 Q
5 2 3 1337 Michael NORMAN USAUSA 44.26 Q
6 3 2 1289 Christopher BAILEY USAUSA 44.31 q PB
7 2 1 1257 Jereem RICHARDS TTOTTO 44.33 Q
8 3 3 1082 Samuel OGAZI NGRNGR 44.41 q PB
9 3 1 407 Busang Collen KEBINATSHIPI BOTBOT 44.43 PB .428
10 4 2 410 Bayapo NDORI BOTBOT 44.43 .429
11 4 1 697 Charles DOBSON GBRGBR 44.48
12 5 1 1170 Ammar Ismail YAHIA IBRAHIM QATQAT 44.64 PB
13 4 3 910 Jevaughn POWELL JAMJAM 44.91
14 5 3 333 Reece HOLDER AUSAUS 44.94 .933
15 6 1 1203 Cheikh Tidiane DIOUF SENSEN 44.94 NR .940
16 5 2 870 Luca SITO ITAITA 45.01
17 6 2 314 Elián LARREGINA ARGARG 45.02
18 6 3 1184 Zakithi NENE RSARSA 45.06
19 7 3 414 Leungo SCOTCH BOTBOT 45.16
20 7 2 1187 Lythe PILLAY RSARSA 45.24
21 8 3 463 Christopher MORALES-WILLIAMS CANCAN 45.25
22 7 1 1093 HÃ¥vard Bentdal INGVALDSEN NORNOR 45.60
23 8 1 380 Alexander DOOM BELBEL 1:55.10
2 1213 Aruna Dharshana SINGHAPURAGE SRISRI DQ
Legend

ms - Milliseconds - shown when two or more competitors finish with the same time down to hundredths of a second