| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 5 | Udvarhelyi Lili (2015)Budaörsi Sport Club | 03:28.80 | - | 155 | |
100m01:43.21 150m02:38.4600:55.25 +1.19
200m03:28.8000:50.34 -4.91
| ||||||
| 2 | 4 | Boczonádi Anabell (2015)Budaörsi Sport Club | 03:30.54 | 00:01.74 | 151 | |
100m01:41.89 150m02:37.8900:56.00 +2.39
200m03:30.5400:52.65 -3.35
| ||||||
| 3 | 8 | Gógl Zoé Anna (2017)Budaörsi Sport Club | 03:36.59 | 00:07.79 | 139 | |
100m01:48.30 150m02:44.7900:56.49 -2.31
200m03:36.5900:51.80 -4.69
| ||||||
| 4 | 1 | Szlovák Szofi (2015)Budaörsi Sport Club | 03:48.90 | 00:20.10 | 117 | |
100m01:54.35 150m02:53.8300:59.48 -1.03
200m03:48.9000:55.07 -4.41
| ||||||
| 5 | 3 | Kovács Sára (2017)KESI | 03:51.72 | 00:22.92 | 113 | |
100m01:52.82 150m02:53.7401:00.92 +0.1
200m03:51.7200:57.98 -2.94
| ||||||
| 6 | 2 | Bugyi Berta (2017)DKSE Dunaújváros | 03:59.98 | 00:31.18 | 102 | |
150m02:53.83 200m03:59.9801:06.15 -
| ||||||
| 7 | 7 | Horváth Zoé (2017)DKSE Dunaújváros | 04:01.77 | 00:32.97 | 100 | |
100m01:57.03 150m03:00.5701:03.54 -2.02
200m04:01.7701:01.20 -2.34
| ||||||
| - | 6 | Kőrössy Lili (2017)Budaörsi Sport Club | DNS | |||