| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 2 | Rónai Dorka (2014)KSI SE | 00:34.48R:0.8 | - | 321 | |
| 2 | 0 | Török Emma Róza (2014)KSI SE | 00:34.56R:0.75 | 00:00.08 | 318 | |
| 3 | 8 | Petényi Napsugár Erzsébet (2016)KSI SE | 00:37.31 | 00:02.83 | 253 | |
| 4 | 4 | Bakos Dorina (2015)Kaposvári Úszó SE | 00:38.28R:0.66 | 00:03.80 | 234 | |
| 5 | 1 | Kovács Alíz (2017)KSI SE | 00:43.34 | 00:08.86 | 161 | |
| 6 | 3 | Donkó Laura (2016)CASTOR SE | 00:47.39R:0.78 | 00:12.91 | 123 | |
| 7 | 7 | Léránt Borbála (2018)KSI SE | 00:48.12 | 00:13.64 | 118 | |
| 8 | 6 | Pocsaji Léa (2018)Vidám Vidrakölykök | 00:53.18R:0.96 | 00:18.70 | 87 | |
| 9 | 5 | Lugosi Liliána (2019)Darnyi Tamás SC | 00:58.07 | 00:23.59 | 67 |