| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 5 | Vasas Réka (2008)KÚKSE | 00:40.62 | - | 375 | |
| 2 | 4 | Bálint Petra Noémi (2010)Monori Sport Egyes. | 00:40.63 | 00:00.01 | 375 | |
| 3 | 3 | Kiss Alina (2010)Újpesti Torna Egylet | 00:43.11 | 00:02.49 | 313 | |
| 4 | 1 | Kertész Réka (2009)Budapesti Honvéd | 00:43.35 | 00:02.73 | 308 | |
| 5 | 7 | Berta Brigitta Dorina (2010)Újpesti Torna Egylet | 00:43.51 | 00:02.89 | 305 | |
| 6 | 2 | Kalla Flóra (2008)Váci Ifjúsági SE | 00:43.66 | 00:03.04 | 302 | |
| 7 | 6 | Szabó Vivien (2010)Kőbánya Sport Club | 00:44.18 | 00:03.56 | 291 | |
| 8 | 8 | Pongrácz Mirtill (2010)Bohóchal Egyesület | 00:44.46 | 00:03.84 | 286 |