| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2022 | 
|---|---|---|---|---|---|
| 1 | 1026 | Cátia AZEVEDO |  POR | 50.59 | 51.24 | 
| 2 | 485 | Tabata VITORINO |  BRA | 51.99 | 51.99 | 
| 3 | 844 | Candice MCLEOD |  JAM | 49.51 | 50.29 | 
| 4 | 1012 | Anna KIEŁBASIŃSKA |  POL | 50.28 | 50.28 | 
| 5 | 782 | Rhasidat ADELEKE |  IRL | 50.70 | 50.70 | 
| 6 | 445 | Shaunae MILLER-UIBO |  BAH | 48.36 | 49.91 | 
| 7 | 1174 | Lynna IRBY-JACKSON |  USA | 49.80 | 50.67 | 
| 8 | 708 | Victoria OHURUOGU |  GBR | 51.05 | 51.05 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2022 | 
|---|---|---|---|---|---|
| 1 | 438 | Susanne GOGL-WALLI |  AUT | 51.52 | 52.13 | 
| 2 | 721 | Nicole YEARGIN |  GBR | 50.96 | 51.17 | 
| 3 | 845 | Stephenie Ann MCPHERSON |  JAM | 49.34 | 50.15 | 
| 4 | 1011 | Natalia KACZMAREK |  POL | 50.16 | 50.16 | 
| 5 | 590 | Fiordaliza COFIL |  DOM | 50.38 | 50.38 | 
| 6 | 774 | Aliyah ABRAMS |  GUY | 51.13 | 51.17 | 
| 7 | 1041 | Gabby SCOTT |  PUR | 50.97 | 50.97 | 
| 8 | 952 | Lieke KLAVER |  NED | 50.24 | 50.24 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2022 | 
|---|---|---|---|---|---|
| 1 | 580 | Lada VONDROVÁ |  CZE | 51.13 | 51.13 | 
| 2 | 863 | Charokee YOUNG |  JAM | 49.87 | 49.87 | 
| 3 | 593 | Marileidy PAULINO |  DOM | 49.20 | 49.49 | 
| 4 | 926 | Modesta Justė MORAUSKAITĖ |  LTU | 50.49 | 50.49 | 
| 5 | 449 | Sada WILLIAMS |  BAR | 50.11 | 50.74 | 
| 6 | 1154 | Talitha DIGGS |  USA | 49.99 | 49.99 | 
| 7 | 564 | Roxana GÓMEZ |  CUB | 49.71 | 50.93 | 
| 8 | 711 | Ama PIPI |  GBR | 51.08 | 51.31 |