| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 1684 | Marileidy PAULINO |
DOM
|
49.38 Q NR | 0.172 |
| 2 | 2501 | Candice MCLEOD |
JAM
|
49.51 Q PB | 0.162 |
| 3 | 1583 | Roxana GÓMEZ |
CUB
|
49.71 q PB | 0.168 |
| 4 | 3853 | Quanera HAYES |
USA
|
49.81 q | 0.153 |
| 5 | 1606 | Eleni ARTYMATA |
CYP
|
50.80 NR | 0.191 |
| 6 | 1112 | Susanne GOGL-WALLI |
AUT
|
51.52 PB | 0.224 |
| 7 | 2021 | Ama PIPI |
GBR
|
51.59 | 0.140 |
| 8 | 1629 | Lada VONDROVÁ |
CZE
|
51.62 | 0.183 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 1131 | Shaunae MILLER-UIBO |
BAH
|
49.60 Q | 0.155 |
| 2 | 2033 | Jodie WILLIAMS |
GBR
|
49.97 Q PB | 0.136 |
| 3 | 2500 | Roneisha MCGREGOR |
JAM
|
50.34 | 0.181 |
| 4 | 3857 | Wadeline JONATHAS |
USA
|
50.51 | 0.189 |
| 5 | 2924 | Paola MORÁN |
MEX
|
51.06 SB | 0.168 |
| 6 | 2995 | Lieke KLAVER |
NED
|
51.37 | 0.208 |
| 7 | 2249 | Aliyah ABRAMS |
GUY
|
51.46 | 0.137 |
| 8 | 1762 | Aauri Lorena BOKESA |
ESP
|
51.57 PB | 0.194 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 2502 | Stephenie Ann MCPHERSON |
JAM
|
49.34 Q PB | 0.134 |
| 2 | 3847 | Allyson FELIX |
USA
|
49.89 Q SB | 0.179 |
| 3 | 1151 | Sada WILLIAMS |
BAR
|
50.11 NR | 0.167 |
| 4 | 3164 | Natalia KACZMAREK |
POL
|
50.79 | 0.165 |
| 5 | 1388 | Kyra CONSTANTINE |
CAN
|
51.22 | 0.177 |
| 6 | 1920 | Amandine BROSSIER |
FRA
|
51.30 | 0.170 |
| 7 | 3223 | Cátia AZEVEDO |
POR
|
51.32 | 0.146 |
| 8 | 2991 | Lisanne DE WITTE |
NED
|
52.09 | 0.178 |