| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1327 | Chrisann GORDON-POWELL | 
                                         
                                        JAM
                                     | 
                                    52.79 Q | 0.189 | 
| 2 | 1599 | Robin Reynolds | 
                                         
                                        USA
                                     | 
                                    53.21 Q | 0.155 | 
| 3 | 1454 | Patrycja WYCISZKIEWICZ-ZAWADZKA | 
                                         
                                        POL
                                     | 
                                    53.97 | 0.170 | 
| 4 | 1322 | Ylenia Vitale | 
                                         
                                        ITA
                                     | 
                                    55.29 PB | 0.182 | 
| 5 | 1503 | Anna Parfenova | 
                                         
                                        RUS
                                     | 
                                    55.40 | 0.201 | 
| 6 | 1119 | Kristina Dudek | 
                                         
                                        CRO
                                     | 
                                    56.49 | 0.166 | 
| 7 | 1299 | Priyanka Mondal | 
                                         
                                        IND
                                     | 
                                    57.16 | 0.182 | 
| 8 | 1225 | Brigitte NTIAMOAH | 
                                         
                                        FRA
                                     | 
                                    57.38 | 0.219 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1039 | Shaunae MILLER-UIBO | 
                                         
                                        BAH
                                     | 
                                    52.92 Q | 0.368 | 
| 2 | 1585 | Kendall Baisden | 
                                         
                                        USA
                                     | 
                                    53.32 Q | 0.171 | 
| 3 | 1477 | Bianca Razor | 
                                         
                                        ROU
                                     | 
                                    53.51 q | 0.175 | 
| 4 | 1419 | Florence Uwakwe | 
                                         
                                        NGR
                                     | 
                                    54.11 | 0.155 | 
| 5 | 1390 | Modesta JustÄ— MORAUSKAITÄ– | 
                                         
                                        LTU
                                     | 
                                    55.55 PB | 0.208 | 
| 6 | 1511 | Anja Benko | 
                                         
                                        SLO
                                     | 
                                    55.89 | 0.196 | 
| 7 | 1316 | Raphaela Boaheng LUKUDO | 
                                         
                                        ITA
                                     | 
                                    56.46 | 0.170 | 
| 8 | 1290 | Bianka KÉRI | 
                                         
                                        HUN
                                     | 
                                    56.97 | 0.223 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1073 | Christian Brennan | 
                                         
                                        CAN
                                     | 
                                    53.15 Q | 0.184 | 
| 2 | 1330 | Olivia James | 
                                         
                                        JAM
                                     | 
                                    53.51 Q | 0.243 | 
| 3 | 1203 | Ella Räsänen | 
                                         
                                        FIN
                                     | 
                                    53.92 q | 0.183 | 
| 4 | 1417 | Rita Ossai | 
                                         
                                        NGR
                                     | 
                                    54.02 | 0.184 | 
| 5 | 1573 | Kateryna KARPIUK | 
                                         
                                        UKR
                                     | 
                                    56.15 | 0.199 | 
| 6 | 1163 | Barbara CAMBLOR | 
                                         
                                        ESP
                                     | 
                                    56.25 | 0.260 | 
| 7 | 1514 | Dorotea Rebernik | 
                                         
                                        SLO
                                     | 
                                    57.05 | 0.156 | 
| 8 | 1447 | Blanka Kuta | 
                                         
                                        POL
                                     | 
                                    58.35 | 0.158 |