| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 445 | Shaunae MILLER-UIBO |  BAH | 51.10 Q | 0.123 | 
| 2 | 774 | Aliyah ABRAMS |  GUY | 51.98 Q | 0.148 | 
| 3 | 1041 | Gabby SCOTT |  PUR | 52.05 Q | 0.182 | 
| 4 | 438 | Susanne GOGL-WALLI |  AUT | 52.18 q | 0.170 | 
| 5 | 938 | Paola MORÁN |  MEX | 52.28 | 0.190 | 
| 6 | 1158 | Kendall ELLIS |  USA | 52.55 | 0.187 | 
| 7 | 1047 | Miranda Charlene COETZEE |  RSA | 53.30 | 0.137 | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 100 m | 12.03 |  Shaunae MILLER-UIBO |  BAH | 
| 200 m | 24.13 |  Shaunae MILLER-UIBO |  BAH | 
| 300 m | 36.84 |  Shaunae MILLER-UIBO |  BAH | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 845 | Stephenie Ann MCPHERSON |  JAM | 50.15 Q SB | 0.123 | 
| 2 | 1011 | Natalia KACZMAREK |  POL | 50.21 Q | 0.152 | 
| 3 | 952 | Lieke KLAVER |  NED | 50.24 Q NR | 0.161 | 
| 4 | 721 | Nicole YEARGIN |  GBR | 51.17 q SB | 0.150 | 
| 5 | 1026 | Cátia AZEVEDO |  POR | 51.55 q | 0.181 | 
| 6 | 485 | Tabata VITORINO |  BRA | 52.17 q | 0.158 | 
| 7 | 1229 | Niddy MINGILISHI |  ZAM | 52.84 | 0.163 | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 100 m | 12.29 |  Lieke KLAVER |  NED | 
| 200 m | 24.06 |  Lieke KLAVER |  NED | 
| 300 m | 36.73 |  Stephenie Ann MCPHERSON |  JAM | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 449 | Sada WILLIAMS |  BAR | 51.05 Q | 0.169 | 
| 2 | 926 | Modesta Justė MORAUSKAITĖ |  LTU | 51.27 Q | 0.136 | 
| 3 | 711 | Ama PIPI |  GBR | 51.32 Q | 0.171 | 
| 4 | 863 | Charokee YOUNG |  JAM | 51.84 q | 0.199 | 
| 5 | 783 | Sophie BECKER |  IRL | 52.24 | 0.151 | 
| 6 | 454 | Camille LAUS |  BEL | 52.56 | 0.185 | 
| 7 | 958 | Eveline SAALBERG |  NED | 52.59 | 0.190 | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 100 m | 12.18 |  Sophie BECKER |  IRL | 
| 200 m | 24.20 |  Sophie BECKER |  IRL | 
| 300 m | 36.84 |  Sada WILLIAMS |  BAR | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 593 | Marileidy PAULINO |  DOM | 50.76 Q | 0.173 | 
| 2 | 782 | Rhasidat ADELEKE |  IRL | 51.59 Q | 0.151 | 
| 3 | 1174 | Lynna IRBY-JACKSON |  USA | 51.78 Q | 0.178 | 
| 4 | 921 | Gunta VAIČULE |  LAT | 52.21 | 0.176 | 
| 5 | 498 | Lauren GALE |  CAN | 52.46 | 0.157 | 
| 6 | 1066 | Anita HORVAT |  SLO | 52.67 | 0.192 | 
| 7 | 976 | Imaobong Nse UKO |  NGR | 52.80 | 0.203 | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 100 m | 12.14 |  Marileidy PAULINO |  DOM | 
| 200 m | 23.74 |  Marileidy PAULINO |  DOM | 
| 300 m | 36.39 |  Marileidy PAULINO |  DOM | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 590 | Fiordaliza COFIL |  DOM | 51.19 Q | 0.214 | 
| 2 | 1154 | Talitha DIGGS |  USA | 51.54 Q | 0.133 | 
| 3 | 564 | Roxana GÓMEZ |  CUB | 51.85 Q | 0.190 | 
| 4 | 816 | Alice MANGIONE |  ITA | 52.72 | 0.205 | 
| 5 | 1088 | Silke LEMMENS |  SUI | 52.86 | 0.160 | 
| 6 | 521 | Aiyanna STIVERNE |  CAN | 53.07 | 0.115 | 
| 7 | 459 | Naomi VAN DEN BROECK |  BEL | 53.16 | 0.111 | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 100 m | 12.39 |  Talitha DIGGS |  USA | 
| 200 m | 24.65 |  Talitha DIGGS |  USA | 
| 300 m | 37.75 |  Talitha DIGGS |  USA | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1012 | Anna KIEŁBASIŃSKA |  POL | 50.63 Q | 0.151 | 
| 2 | 844 | Candice MCLEOD |  JAM | 50.76 Q | 0.160 | 
| 3 | 708 | Victoria OHURUOGU |  GBR | 51.07 Q | 0.190 | 
| 4 | 580 | Lada VONDROVÁ |  CZE | 51.55 q | 0.199 | 
| 5 | 509 | Natassha MCDONALD |  CAN | 52.41 | 0.169 | 
| 6 | 477 | Tiffani MARINHO |  BRA | 52.80 | 0.188 | 
| 7 | 931 | Shereen VALLABOUY |  MAS | 53.57 | 0.190 | 
| 8 | 992 | Rosie ELLIOTT |  NZL | 54.92 | 0.147 | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 100 m | 12.22 |  Anna KIEŁBASIŃSKA |  POL | 
| 200 m | 24.11 |  Candice MCLEOD |  JAM | 
| 300 m | 36.82 |  Candice MCLEOD |  JAM |