| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Németh Lujza Júlia (2015)BVSC-Zugló | 49.98R:0.63 | - | 155 | |
| 2 | 1 | Tabi Viktória Dóra (2015)FTC | 50.42R:0.7 | 00.44 | 151 | |
| 3 | 6 | Szücs Natália (2016)FTC | 50.87R:0.98 | 00.89 | 147 | |
| 4 | 2 | Marton Szonja Eszter (2015)BVSC-Zugló | 51.62R:0.63 | 01.64 | 140 | |
| 5 | 5 | Kopasz Léna (2015)BVSC-Zugló | 52.13R:0.64 | 02.15 | 136 | |
| 6 | 8 | Sárvári Natália (2015)Gigászok SE | 52.53R:0.68 | 02.55 | 133 | |
| 7 | 7 | Szomolánkai Mira (2017)Darnyi Tamás SC | 52.60R:0.81 | 02.62 | 133 | |
| 8 | 3 | Mikita Emily (2017)Kőbánya Sport Club | 53.46R:0.77 | 03.48 | 126 |