| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 6 | Imlauer Noémi (2016)Kőbánya Sport Club | 00:48.02R:0.83 | - | 175 | |
| 2 | 1 | Juhász Noémi (2015)Monori Sport Egyes. | 00:48.60R:0.66 | 00:00.58 | 168 | |
| 3 | 5 | Nagy Zselyke (2016)Monori Sport Egyes. | 00:48.71R:0.74 | 00:00.69 | 167 | |
| 4 | 2 | Csetreki Blanka (2015)Debreceni Aquasport | 00:49.29R:0.53 | 00:01.27 | 161 | |
| 5 | 8 | Kobilik Réka (2013)Lőrinc Swim Team | 00:49.51R:0.7 | 00:01.49 | 159 | |
| 6 | 3 | Szomolánkai Mira (2017)Darnyi Tamás SC | 00:50.30R:0.66 | 00:02.28 | 152 | |
| 7 | 7 | Mikita Emily (2017)Kőbánya Sport Club | 00:50.78R:0.78 | 00:02.76 | 147 | |
| 8 | 4 | Ollé Borbála (2016)Darnyi Tamás SC | 00:52.07R:0.64 | 00:04.05 | 137 |