| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 3 | Gyűjtő Anna Zsófia (2018)Budapesti Honvéd SE | 00:52.67R:0.68 | - | 132 | |
| 2 | 7 | Sólyom Julianna (2017)BVSC-Zugló | 00:53.18R:0.85 | 00:00.51 | 128 | |
| 3 | 5 | Zöld Zora (2018)Budapesti Honvéd SE | 00:53.20R:0.71 | 00:00.53 | 128 | |
| 4 | 4 | Zhou Mia (2017)Budapesti Honvéd SE | 00:55.25R:0.99 | 00:02.58 | 114 | |
| 5 | 6 | Wesniczky Anna Katalin (2018)II. Kerületi Sport | 00:58.04R:-0.98 | 00:05.37 | 99 | |
| 6 | 2 | Stark Írisz Vanda (2018)II. Kerületi Sport | 01:04.87R:0.9 | 00:12.20 | 70 |