Semifinal
Wednesday, August 21, 2019 – Saturday, August 24, 2019
| Name | Team | Times | |
|---|---|---|---|
| 1 |  Dorota Borowska | Poland | 45.02″ |
| 2 |  Nevin Harrison | United States | + 0.06″ |
| 3 | Katharine Vincent | Canada | + 0.12″ |
| 4 | Luqi Zhang | China | + 0.39″ |
| 5 | Olesia Romasenko | Russia | + 0.7″ |
| 6 |  Anastasiia Chetverikova | Ukraine | + 1.04″ |
| 7 | Maria Mailliard | Chile | + 1.07″ |
| 8 |  Alena Nazdrova | Belarus | + 1.11″ |
| 9 | Staniliya Stamenova | Bulgaria | + 1.75″ |
| 10 | Valdenice Conceicao Nascimento | Brazil | + 2.15″ |
| 11 | Gabriela Ladicova | Slovakia | + 2.16″ |
| 12 | Teruko Kiriake | Japan | + 2.32″ |
| 13 | Riska Andriyani | Indonesia | + 2.38″ |
| 14 | Bianka Nagy | Hungary | + 2.41″ |
| 15 | María Corbera | Spain | + 2.42″ |
| 16 |  Katie Reid | Great Britain | + 2.44″ |
| 17 | Orasa Thiangkathok | Thailand | + 2.5″ |
| 18 | Jana Jezova | Czech Republic | + 2.61″ |
| 19 | Haeng Bok Ko | DPR Korea | + 2.79″ |
| 20 | Mariam Kerdikoshvii | Georgia | + 2.97″ |
| 21 | Vanesa Tot | Croatia | + 3.06″ |
| 22 | Thi Phuong Truong | Vietnam | + 3.44″ |
| 23 | Ruta Dagyte | Lithuania | + 3.71″ |
| 24 | Annika Loske | Germany | + 3.83″ |
| 25 | Stefanica Ursu | Romania | + 4.41″ |
| 26 | Julija Gutova | Latvia | + 5.74″ |
| 27 | Anais Cattelet | France | + 5.94″ |