| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Csoboz Nikolett (2013)Kaposvári Adorján | 00:43.50R:0.82 | - | 177 | |
| 2 | 3 | Kiss Kamilla Ida (2015)Szekszárdi Sportközp | 00:43.94R:0.74 | 00:00.44 | 171 | |
| 3 | 5 | Wittmann Lívia (2016)Zalaco ZÚK | 00:46.18R:0.62 | 00:02.68 | 148 | |
| 4 | 6 | Lakics Léna (2017)Kaposvári Úszó SE | 00:46.59R:0.83 | 00:03.09 | 144 | |
| 5 | 7 | Gegő Fanni (2016)DSI | 00:50.82 | 00:07.32 | 111 | |
| 6 | 2 | Fehérvári Léna (2016)DSI | 00:51.76 | 00:08.26 | 105 | |
| 7 | 1 | Farkas Gréta (2016)KASI | 00:52.46 | 00:08.96 | 100 | |
| 8 | 8 | Fata Rozina Panka (2016)Szekszárdi Sportközp | 00:52.75R:0.78 | 00:09.25 | 99 | |
| - | 0 | Radnai Szofi (2016)DSI | DSQ |