| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2015 |
|---|---|---|---|---|---|
| 2 | 513 | Novlene Williams-Mills |
JAM
|
49.63 | 50.47 |
| 3 | 881 | Phyllis FRANCIS |
USA
|
50.46i | 50.50 |
| 4 | 512 | Shericka JACKSON |
JAM
|
50.03 | 50.03 |
| 5 | 142 | Shaunae MILLER-UIBO |
BAH
|
49.92 | 49.92 |
| 6 | 879 | Allyson FELIX |
USA
|
49.59 | 49.89 |
| 7 | 390 | Christine Ohuruogu |
GBR
|
49.41 | 50.16 |
| 8 | 509 | Christine Day |
JAM
|
50.16 | 50.16 |
| 9 | 515 | Stephenie Ann MCPHERSON |
JAM
|
49.92 | 50.32 |