| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 4331 | Phyllis FRANCIS |
USA
|
49.92 PB | 0.196 |
| 2 | 3707 | Salwa Eid NASER |
BRN
|
50.06 NR | 0.203 |
| 3 | 4330 | Allyson FELIX |
USA
|
50.08 | 0.184 |
| 4 | 3654 | Shaunae MILLER-UIBO |
BAH
|
50.49 | 0.160 |
| 5 | 4030 | Shericka JACKSON |
JAM
|
50.76 | 0.194 |
| 6 | 4037 | Stephenie Ann MCPHERSON |
JAM
|
50.86 | 0.162 |
| 7 | 4054 | Novlene Williams-Mills |
JAM
|
51.48 | 0.272 |
| 4389 | Kabange Mupopo |
ZAM
|
DQ | 0.184 |