| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Dmitrenko Nikita (2015)Bohóchal | 47.59 | - | 162 | |
| 2 | 5 | Létang-Prónay Martin (2015)Kőbánya Sport Club | 47.69 | 00.10 | 161 | |
| 3 | 3 | Hosnyánszky Zalán (2013)BVSC-Zugló | 48.66 | 01.07 | 151 | |
| 4 | 6 | Barta Ákos (2013)Budapesti Honvéd SE | 49.31 | 01.72 | 145 | |
| 5 | 7 | Pongrátz Ferenc (2013)BVSC-Zugló | 49.33 | 01.74 | 145 | |
| 6 | 2 | Dósa András (2013)Érdi Vízisport Kft | 50.00 | 02.41 | 139 | |
| 7 | 1 | Tolmácsi-Bodi Mihály (2015)BVSC-Zugló | 50.03 | 02.44 | 139 | |
| 8 | 8 | Széll Péter (2014)II. Kerületi Sport | 52.78 | 05.19 | 118 |