| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 8 | Mildner Sára (2015)Darnyi Tamás SC | 00:45.39 | - | 140 | |
| 2 | 5 | Dudás Katalin (2016)Érdi Vízisport Kft | 00:48.12 | 00:02.73 | 118 | |
| 3 | 1 | Bráz Panni Liza (2016)Kis-Pingvin SE | 00:48.15 | 00:02.76 | 117 | |
| 4 | 3 | Theisz Mira (2017)Darnyi Tamás SC | 00:49.05 | 00:03.66 | 111 | |
| 5 | 4 | Rezsonya Fruzsina Flóra (2017)Kis-Pingvin SE | 00:49.12 | 00:03.73 | 111 | |
| 6 | 6 | Dombauer Zsófia (2017)Érdi Vízisport Kft | 00:53.35 | 00:07.96 | 86 | |
| 7 | 2 | Jekkel Flóra (2017)Érdi Vízisport Kft | 00:53.80 | 00:08.41 | 84 | |
| 8 | 7 | Palov Zsófia (2017)MATE - GEAC | 00:57.17 | 00:11.78 | 70 |