| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Dohán Lilla Borbála (2009)NYSC | 48.05R:0.91 | - | 174 | |
| 2 | 3 | Lohan Selena (2014)CS SEINI | 50.70R:0.7 | 02.65 | 148 | |
| 3 | 5 | Kakuk Vivien (2014)Tótkomlósi UE | 51.59R:0.68 | 03.54 | 141 | |
| 4 | 1 | Csige Zsuzsanna (2014)Létavértes | 52.83 | 04.78 | 131 | |
| 5 | 2 | Ardelean Olivia Ameli (2016)Létavértes | 53.23R:0.61 | 05.18 | 128 | |
| 6 | 6 | Farkas Emma (2015)NYSC | 56.18R:0.76 | 08.13 | 109 | |
| 7 | 8 | Papp Liliána (2015)NYSC | 57.74R:0.83 | 09.69 | 100 | |
| 8 | 7 | Csepregi Virág (2016)Létavértes | 01:00.44R:0.69 | 12.39 | 87 | |
| - | 0 | Petrovics Zsófia (2014)NYSC | DNS | |||
| - | 9 | Szálku Mia Emma (2016)Létavértes | DNS |