| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Kádár Csenge (2012)TVSE | 43.28 | - | 313 | |
| 2 | 2 | Horváth Jázmin Anna (2011)Darnyi Tamás SC | 45.76 | 02.48 | 265 | |
| 3 | 7 | Dózsa Dorka Zoé (2010)Kőbánya Sport Club | 45.77 | 02.49 | 265 | |
| 4 | 6 | Horváth Menta Mária (2011)Darnyi Tamás SC | 45.87 | 02.59 | 263 | |
| 5 | 1 | Breban Cezara (2012)Black Marlin | 47.10 | 03.82 | 243 | |
| 6 | 3 | Tas Alexandra (2011)BVSC-Zugló | 47.44 | 04.16 | 238 | |
| 7 | 8 | Kazinczi Adrienn (2012)Kőbánya Sport Club | 48.14 | 04.86 | 227 | |
| - | 5 | Keresztes Gréta Gabriella (2011)FTC | DNS |