| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS | ms* |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 891 | Shakima WIMBLEY |
USA |
51.34 Q | |
| 2 | 1 | 3 | 879 | Courtney OKOLO |
USA |
51.79 Q | |
| 3 | 2 | 1 | 688 | Eilidh Doyle |
GBR |
52.15 Q | |
| 4 | 2 | 3 | 753 | Tovea JENKINS |
JAM |
52.42 Q | |
| 5 | 3 | 1 | 772 | Agnė ŠERKŠNIENĖ |
LTU |
52.62 NIR | |
| 6 | 1 | 2 | 807 | Justyna ŚWIĘTY-ERSETIC |
POL |
52.63 Q | .621 |
| 7 | 2 | 2 | 687 | Zoey CLARK |
GBR |
52.63 Q | .624 |
| 8 | 4 | 1 | 856 | Anna RYZHYKOVA |
UKR |
52.74 PB | |
| 9 | 5 | 1 | 835 | Alexandra BEZEKOVÁ |
SVK |
53.05 | |
| 10 | 3 | 2 | 783 | Madiea Ghafoor |
NED |
53.14 | |
| 11 | 4 | 2 | 741 | Raphaela Boaheng LUKUDO |
ITA |
53.18 | |
| 12 | 3 | 3 | 730 | Phil HEALY |
IRL |
53.26 | |
| 13 | 4 | 3 | 659 | Lada VONDROVÁ |
CZE |
53.32 | |
| 14 | 5 | 2 | 705 | Nadine GONSKA |
GER |
53.45 | |
| 15 | 5 | 3 | 836 | Iveta PUTALOVÁ |
SVK |
53.46 | |
| 1 | 834 | Lea SPRUNGER |
SUI |
DQ | |||
| 3 | 718 | Maria Belimpasaki |
GRE |
DQ | |||
| 2 | 750 | Stephenie Ann MCPHERSON |
JAM |
DQ |
ms - Milliseconds - shown when two or more competitors finish with the same time down to hundredths of a second