| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Balázs Luca Anna (2015)Létavértes | 00:36.95R:0.91 | - | 260 | |
| 2 | 5 | Józsa Zonga (2014)H2O Team Marosvásárhely | 00:37.25 | 00:00.30 | 254 | |
| 3 | 6 | Sramkó Gréta (2015)Orosháza UE | 00:38.15 | 00:01.20 | 237 | |
| 4 | 3 | Floroiu Oana (2009)Cobra Arad | 00:38.22R:0.88 | 00:01.27 | 235 | |
| 5 | 7 | Metesan Natalia (2012)Cobra Arad | 00:38.30 | 00:01.35 | 234 | |
| 6 | 1 | Cococeanu Sophia (2014)Aquasport Temesvár | 00:39.12 | 00:02.17 | 219 | |
| 7 | 2 | Farca Allegra (2014)Gloria Arad | 00:39.75 | 00:02.80 | 209 | |
| 8 | 0 | Lacza Raffai Viktória (2016)Szegedi Úszó Egylet | 00:40.91 | 00:03.96 | 192 | |
| 9 | 8 | Chelciov Anamaria (2013)CS UVT Temesvár | 00:41.15 | 00:04.20 | 188 | |
| 10 | 9 | Cséplő Frida Elena (2016)Kőbánya Sport Club | 00:42.50 | 00:05.55 | 171 |