| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS | ms* | WIND | 
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 4 | 1975 | Lauren Rain WILLIAMS |  USA | 22.98 Q | +0.2 | |
| 2 | 1 | 5 | 1503 | Polina MILLER |  ANA | 23.17 Q | +0.7 | |
| 3 | 2 | 5 | 1847 | Martyna KOTWIŁA |  POL | 23.21 Q NU20R | +0.7 | |
| 4 | 1 | 3 | 1780 | Briana WILLIAMS |  JAM | 23.32 Q | +0.9 | |
| 5 | 3 | 5 | 1815 | Akvilė Andriukaitytė |  LTU | 23.35 Q NU20R | +0.7 | |
| 6 | 1 | 1 | 1956 | Jayla Kirkland |  USA | 23.41 Q | -0.1 | |
| 7 | 2 | 1 | 1704 | Sophia JUNK |  GER | 23.43 Q | -0.1 | |
| 8 | 1 | 2 | 1685 | Alisha Rees |  GBR | 23.49 Q | +1.1 | |
| 9 | 2 | 3 | 1703 | Corinna SCHWAB |  GER | 23.55 Q PB | +0.9 | |
| 10 | 2 | 2 | 1561 | Ashlan Best |  CAN | 23.62 Q SB | +1.1 | |
| 11 | 2 | 4 | 1680 | Georgina Adam |  GBR | 23.69 Q | +0.2 | |
| 12 | 3 | 4 | 1627 | Jaël BESTUÉ |  ESP | 23.70 Q | +0.2 | |
| 13 | 3 | 3 | 1552 | Lorraine MARTINS |  BRA | 23.75 Q | +0.9 | |
| 14 | 4 | 3 | 1519 | Mia Gross |  AUS | 23.78 Q | +0.9 | |
| 15 | 4 | 5 | 1785 | Shuri AONO |  JPN | 23.93 Q | +0.7 | |
| 16 | 3 | 2 | 1517 | Riley DAY |  AUS | 24.00 Q | +1.1 | |
| 17 | 4 | 4 | 1740 | Ciara NEVILLE |  IRL | 24.01 Q | .005 | +0.2 | 
| 18 | 3 | 1 | 1623 | Gabriela Anahi SUAREZ |  ECU | 24.01 Q | .010 | -0.1 | 
| 19 | 5 | 4 | 1861 | Catarina LOURENÇO |  POR | 24.03 q PB | .021 | +0.2 | 
| 20 | 4 | 1 | 1554 | Leticia LIMA |  BRA | 24.03 Q | .027 | -0.1 | 
| 21 | 5 | 1 | 1596 | Angie Saray González |  COL | 24.13 q | -0.1 | |
| 22 | 6 | 1 | 1919 | Iantha Wright |  TTO | 24.16 q | -0.1 | |
| 23 | 6 | 4 | 1821 | Patrizia VAN DER WEKEN |  LUX | 24.20 q | +0.2 | |
| 24 | 7 | 1 | 1662 | Sara FRANCIS |  FIN | 24.23 PB | -0.1 | |
| 25 | 5 | 5 | 1602 | Santa Colomeiteva |  CYP | 24.25 | +0.7 | |
| 26 | 6 | 5 | 1752 | Aurora BERTON |  ITA | 24.29 | +0.7 | |
| 27 | 4 | 2 | 1763 | Moillet Kouakou |  ITA | 24.32 Q | +1.1 | |
| 28 | 5 | 3 | 1842 | Lucy Sheat |  NZL | 24.52 | .513 | +0.9 | 
| 29 | 6 | 3 | 1508 | Gayane Chiloyan |  ARM | 24.52 SB | .519 | +0.9 | 
| 30 | 5 | 2 | 1542 | Kayvon Stubbs |  BAH | 24.61 | +1.1 | |
| 31 | 7 | 3 | 1564 | Lauren GALE |  CAN | 24.78 | +0.9 | |
| 4 | 1541 | Jaida Knowles |  BAH | DNS | ||||
| 2 | 1916 | Akilah LEWIS |  TTO | DNS | ||||
| 2 | 1716 | Halutie HOR |  GHA | DNS | 
ms - Milliseconds - shown when two or more competitors finish with the same time down to hundredths of a second