| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 9 | Blazovich Lotti Alma (2015)Szegedi Úszó Egylet | 00:46.16 | - | 133 | |
| 2 | 1 | Sőti Heléna (2015)Szegedi Úszó Egylet | 00:48.73 | 00:02.57 | 113 | |
| 3 | 0 | Augusz Tímea (2016)Szegedi Úszó Egylet | 00:50.65 | 00:04.49 | 101 | |
| 4 | 2 | Toth Iris (2014)Aquasport Temesvár | 00:51.34 | 00:05.18 | 97 | |
| 5 | 7 | Bere Róza (2016)NICS-HSÚVC | 00:52.19 | 00:06.03 | 92 | |
| 6 | 6 | Korom Lotti (2016)Szegedi Úszó Egylet | 00:53.41 | 00:07.25 | 86 | |
| 7 | 3 | Gonda Clarice (2016)Cobra Arad | 00:54.27 | 00:08.11 | 82 | |
| 8 | 4 | Hegyi Boróka (2016)NICS-HSÚVC | 00:55.14R:0.7 | 00:08.98 | 78 | |
| 9 | 8 | Kuhár Dorina (2017)Hód Úszó SE | 00:55.53R:0.5 | 00:09.37 | 76 | |
| 10 | 5 | Parpala Elisa (2017)Cobra Arad | 00:57.01 | 00:10.85 | 71 |