| place | lane | time | name | delta | country |
|---|---|---|---|---|---|
| 1 | 6 | 44.994 | Jensen, Sophia | 44.994 | CAN |
| 2 | 7 | 46.046 | Harrison, Nevin | 1.052 | USA |
| 3 | 4 | 46.339 | Della Giustina, Olympia | 0.293 | ITA |
| 4 | 3 | 47.144 | Rahova, Denisa | 0.805 | CZE |
| 5 | 2 | 47.204 | Lopez Lamadrid, Yinnoly Francheska | 0.060 | CUB |
| 6 | 5 | 47.354 | Brovkova, Mariya | 0.150 | KAZ |
| 7 | 8 | 47.719 | Borowska, Dorota | 0.365 | POL |
| 8 | 9 | 48.041 | Figueroa, Sley | 0.322 | CHI |
| 9 | 1 | 48.521 | Olarasu, Maria | 0.480 | MDA |