| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 1 | Déri Anna (2015)Tempo-Aqua SE | 44.47 | - | 150 | |
| 2 | 8 | Szomolánkai Mira (2017)Darnyi Tamás SC | 45.90 | 01.43 | 137 | |
| 3 | 6 | Fillér Alíz (2014)Hatvani Úszó Klub SE | 48.33 | 03.86 | 117 | |
| 4 | 7 | Zhou Lili (2015)Budapesti Honvéd | 48.59 | 04.12 | 115 | |
| 5 | 3 | Mikita Emily (2017)Kőbánya Sport Club | 53.01 | 08.54 | 89 | |
| 6 | 2 | Rezsonya Fruzsina Flóra (2017)Kis-Pingvin SE | 54.99 | 10.52 | 79 | |
| 7 | 4 | Mados Liza (2014)Budapesti Honvéd | 55.67 | 11.20 | 76 | |
| 8 | 5 | Marton Szonja Eszter (2015)BVSC-Zugló | 59.87 | 15.40 | 61 |