| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS | ms* |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 2 | 1773 | Shiann SALMON |
JAM |
56.29 Q | |
| 2 | 1 | 1 | 1875 | Zenéy GELDENHUYS |
RSA |
56.72 Q | |
| 3 | 2 | 1 | 1631 | Sara GALLEGO |
ESP |
57.18 Q NU20R | |
| 4 | 1 | 3 | 1909 | Emma ZAPLETALOVÁ |
SVK |
57.22 Q NU20R | |
| 5 | 2 | 2 | 1893 | Yasmin GIGER |
SUI |
57.44 Q | |
| 6 | 2 | 3 | 1562 | Xahria Santiago |
CAN |
57.55 Q | |
| 7 | 3 | 3 | 1953 | Brooke Jaworski |
USA |
57.57 q PB | |
| 8 | 3 | 2 | 1849 | Natalia Wosztyl |
POL |
57.68 q PB | |
| 9 | 3 | 1 | 1657 | Viivi LEHIKOINEN |
FIN |
57.70 SB | |
| 10 | 4 | 1 | 1619 | Maria Fernanda Matos |
DOM |
57.74 NU20R | |
| 11 | 5 | 1 | 1723 | Sára MÁTÓ |
HUN |
57.83 NU20R | |
| 12 | 4 | 2 | 1977 | Jurnee Woodward |
USA |
58.20 | |
| 13 | 4 | 3 | 1658 | Nea Mattila |
FIN |
58.26 PB | |
| 14 | 6 | 1 | 1870 | Iulia Nicoleta Banaga |
ROU |
58.59 PB | |
| 15 | 7 | 1 | 1712 | Sylvia Schulz |
GER |
58.79 | |
| 16 | 8 | 1 | 1817 | Gabija GALVYDYTĖ |
LTU |
58.88 NU20R | |
| 17 | 5 | 2 | 1836 | Solveig Vråle |
NOR |
58.96 | |
| 18 | 5 | 3 | 1551 | Chayenne DA SILVA |
BRA |
59.19 | |
| 19 | 6 | 2 | 1789 | Moeka SEKIMOTO |
JPN |
59.48 | |
| 20 | 6 | 3 | 1514 | Jarmillia Murphy-Knight |
AUS |
59.69 | |
| 21 | 7 | 3 | 1819 | Rūta Okulič-Kazarinaitė |
LTU |
59.83 | |
| 22 | 7 | 2 | 1594 | Valeria Cabezas Caracas |
COL |
1:00.53 | .527 |
| 23 | 8 | 2 | 1550 | Marlene Santos |
BRA |
1:00.53 | .529 |
| 3 | 1774 | Sanique Walker |
JAM |
DNS |
ms - Milliseconds - shown when two or more competitors finish with the same time down to hundredths of a second