| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2022 | 
|---|---|---|---|---|---|
| 1 | 1012 | Anna KIEŁBASIŃSKA | 
                             
                            POL
                         | 
                            50.28 | 50.28 | 
| 2 | 845 | Stephenie Ann MCPHERSON | 
                             
                            JAM
                         | 
                            49.34 | 50.15 | 
| 3 | 445 | Shaunae MILLER-UIBO | 
                             
                            BAH
                         | 
                            48.36 | 49.55 | 
| 4 | 590 | Fiordaliza COFIL | 
                             
                            DOM
                         | 
                            50.14 | 50.14 | 
| 5 | 844 | Candice MCLEOD | 
                             
                            JAM
                         | 
                            49.51 | 50.05 | 
| 6 | 593 | Marileidy PAULINO | 
                             
                            DOM
                         | 
                            49.20 | 49.49 | 
| 7 | 449 | Sada WILLIAMS | 
                             
                            BAR
                         | 
                            50.11 | 50.12 | 
| 8 | 952 | Lieke KLAVER | 
                             
                            NED
                         | 
                            50.18 | 50.18 |