| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 1341 | Phyllis FRANCIS |
USA
|
50.31 Q | 0.189 |
| 2 | 895 | Stephenie Ann MCPHERSON |
JAM
|
50.69 Q | 0.158 |
| 3 | 443 | Kemi ADEKOYA |
BRN
|
50.88 | 0.161 |
| 4 | 714 | Christine Ohuruogu |
GBR
|
51.22 | 0.145 |
| 5 | 780 | Ruth Sophia SPELMEYER-PREUß |
GER
|
51.61 | 0.155 |
| 6 | 1053 | Margaret Bamgbose |
NGR
|
51.92 | 0.212 |
| 7 | 1121 | Patrycja WYCISZKIEWICZ-ZAWADZKA |
POL
|
52.51 | 0.174 |
| 1315 | Olha Zemlyak |
UKR
|
DQ PB | 0.189 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 890 | Shericka JACKSON |
JAM
|
49.83 Q PB | 0.184 |
| 2 | 1347 | Natasha Hastings |
USA
|
49.90 Q SB | 0.188 |
| 3 | 453 | Salwa Eid NASER |
BRN
|
50.88 PB | 0.139 |
| 4 | 678 | Floria GUEI |
FRA
|
51.08 | 0.178 |
| 5 | 484 | Carline Muir |
CAN
|
51.11 | 0.226 |
| 6 | 699 | Emily DIAMOND |
GBR
|
51.49 | 0.178 |
| 7 | 1100 | Małgorzata HOŁUB-KOWALIK |
POL
|
51.93 | 0.136 |
| 8 | 332 | Morgan MITCHELL |
AUS
|
52.68 | 0.136 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 1339 | Allyson FELIX |
USA
|
49.67 Q SB | 0.174 |
| 2 | 361 | Shaunae MILLER-UIBO |
BAH
|
49.91 Q | 0.167 |
| 3 | 863 | Libania Grenot |
ITA
|
50.60 q | 0.156 |
| 4 | 884 | Christine Day |
JAM
|
51.53 | 0.186 |
| 5 | 1116 | Justyna ŚWIĘTY-ERSETIC |
POL
|
51.62 PB | 0.171 |
| 6 | 337 | Anneliese RUBIE-RENSHAW |
AUS
|
51.96 | 0.172 |
| 7 | 1404 | Kabange Mupopo |
ZAM
|
52.04 | 0.155 |
| 8 | 1056 | Patience Okon GEORGE |
NGR
|
52.52 | 0.161 |