Heat 4
Saturday, August 5, 2017, 11:45am GMT – 11:45am GMT
| Name | Team | Times | |
|---|---|---|---|
| 1 |  Steven Gardiner | Bahamas | 44.75″ |
| 2 |  Wilbert London | United States | + 0.35″ |
| 3 | Brian Gregan | Ireland | + 0.62″ |
| 4 |  Jonathan Borlee | Belgium | + 0.95″ |
| 5 | Luguelín Santos | Dominican Republic | + 0.98″ |
| 6 | Mamoudou Hanne | FFA - France Athlétisme | + 1.14″ |
| 7 | Yilmar Herrera | Colombia | + 2.43″ |
| Steven Gayle | Jamaica | DQ |