| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Pintér Panni (2017)BVSC-Zugló | 00:41.11R:0.92 | - | 278 | |
| 2 | 5 | Szobi Emma (2016) UNI Győri Úszó Sportegy. | 00:42.05R:0.67 | 00:00.94 | 260 | |
| 3 | 6 | Lajtai Izabella (2016)Soproni Széchy T. SI | 00:42.34R:0.63 | 00:01.23 | 255 | |
| 4 | 3 | Tari Szonja (2017)BVSC-Zugló | 00:43.49R:0.89 | 00:02.38 | 235 | |
| 5 | 2 | Török Dorottya (2016)BVSC-Zugló | 00:46.66R:0.79 | 00:05.55 | 190 | |
| 6 | 7 | Tőzsér Nóra (2017)Sárvári Gyógyfürdő | 00:47.14R:0.7 | 00:06.03 | 184 | |
| 7 | 1 | Szabó Emma (2016)BVSC-Zugló | 00:48.43R:0.93 | 00:07.32 | 170 | |
| 8 | 0 | Melkovics Szonja (2017) UNI Győri Úszó Sportegy. | 00:50.28R:0.81 | 00:09.17 | 152 | |
| 9 | 8 | Ábrahám Natália (2017)BVSC-Zugló | 00:50.48R:0.67 | 00:09.37 | 150 | |
| 10 | 9 | Luong Thao Nhi (2017)BVSC-Zugló | 00:50.75R:0.8 | 00:09.64 | 148 |