| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 3870 | Sydney MCLAUGHLIN-LEVRONE |  USA | 51.46 WR | 0.163 | 
| 2 | 3876 | Dalilah MUHAMMAD |  USA | 51.58 PB | 0.200 | 
| 3 | 2987 | Femke BOL |  NED | 52.03 AR | 0.165 | 
| 4 | 2513 | Janieve RUSSELL |  JAM | 53.08 PB | 0.136 | 
| 5 | 3757 | Anna RYZHYKOVA |  UKR | 53.48 | 0.177 | 
| 6 | 3766 | Viktoriya TKACHUK |  UKR | 53.79 PB | 0.206 | 
| 7 | 3122 | Gianna WOODRUFF |  PAN | 55.84 | 0.235 | 
| 3836 | Anna COCKRELL |  USA | DQ | 0.167 |