| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Marshall Zsófia (2013)FTC | 03:02.80 | - | 305 | |
100m01:30.04 150m02:17.9700:47.93 +0.06
200m03:02.8000:44.83 -3.1
| ||||||
| 2 | 5 | Varga Zsófia (2014)Komáromi Úszóklub SE | 03:29.85 | 00:27.05 | 202 | |
100m01:43.22 150m02:37.7000:54.48 +1.53
200m03:29.8500:52.15 -2.33
| ||||||
| 3 | 3 | Kovács-Seres Hanga (2017)DKSE Dunaújváros | 03:35.70 | 00:32.90 | 186 | |
100m01:47.64 150m02:43.6500:56.01 -1.72
200m03:35.7000:52.05 -3.96
| ||||||