| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2017 |
|---|---|---|---|---|---|
| 2 | 1413 | Fred KERLEY |
USA
|
43.70 | 43.70 |
| 3 | 1266 | Abdalelah Haroun |
QAT
|
44.27 | 44.64 |
| 4 | 667 | Steven GARDINER |
BAH
|
43.89 | 43.89 |
| 5 | 1071 | Nathon ALLEN |
JAM
|
44.19 | 44.19 |
| 6 | 1282 | Wayde VAN NIEKERK |
RSA
|
43.03 | 43.62 |
| 7 | 708 | Isaac MAKWALA |
BOT
|
43.72 | 43.84 |
| 8 | 1084 | Demish GAYE |
JAM
|
44.55 | 44.55 |
| 9 | 712 | Baboloki THEBE |
BOT
|
44.02 | 44.02 |