| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 110 | Shaunae MILLER-UIBO | 
                                         
                                        BAH
                                     | 
                                    50.31 SB | 0.125 | 
| 2 | 300 | Femke BOL | 
                                         
                                        NED
                                     | 
                                    50.57 | 0.213 | 
| 3 | 273 | Stephenie Ann MCPHERSON | 
                                         
                                        JAM
                                     | 
                                    50.79 NIR | 0.125 | 
| 4 | 323 | Justyna ŚWIĘTY-ERSETIC | 
                                         
                                        POL
                                     | 
                                    51.40 | 0.201 | 
| 5 | 233 | Aliyah ABRAMS | 
                                         
                                        GUY
                                     | 
                                    52.34 | 0.147 | 
| 6 | 303 | Lieke KLAVER | 
                                         
                                        NED
                                     | 
                                    52.67 | 0.157 | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 100 m | 11.99 | 
                                             
                                            
                                                ShaunaeMILLER-UIBO  | 
                                    
                                         
                                        BAH
                                     | 
                                
| 200 m | 23.42 | 
                                             
                                            
                                                ShaunaeMILLER-UIBO  | 
                                    
                                         
                                        BAH
                                     | 
                                
| 300 m | 36.14 | 
                                             
                                            
                                                ShaunaeMILLER-UIBO  | 
                                    
                                         
                                        BAH
                                     |