| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 2 | Kalóczkai Petra Zoé (2015)Merkapt-Mekler Lász | 46.18R:0.82 | - | 199 | |
| 2 | 4 | Németh Lotti (2013)Hullám 91 | 46.75R:0.65 | 00.57 | 192 | |
| 3 | 6 | Homoki Leila (2013)Városi Sportegyesület Dunakeszi | 47.89R:0.71 | 01.71 | 178 | |
| 4 | 9 | Turai Emma (2014)II. Kerületi Sport | 47.91R:0.66 | 01.73 | 178 | |
| 5 | 0 | Gyönyörű Zília (2015)Kőbánya Sport Club | 49.05R:0.93 | 02.87 | 166 | |
| 6 | 8 | Miller Mackenzie (2015)II. Kerületi Sport | 49.06R:0.67 | 02.88 | 166 | |
| 7 | 7 | Fehér Zoé Sára (2013)Hullám 91 | 49.62R:0.8 | 03.44 | 160 | |
| 8 | 3 | Alács Gréta (2013)Ybl Waterpolo Club | 50.81R:0.77 | 04.63 | 149 | |
| 9 | 5 | Ripsz Aliz (2013)Hullám 91 | 52.43R:0.72 | 06.25 | 136 | |
| 10 | 1 | Babinszky Réka Nóra (2015)Monori Sport Egyes. | 52.82R:0.74 | 06.64 | 133 |