| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 5 | Horváth Marcell (2016)Római Sport Egyesüle | 00:38.81 | - | 156 | |
| 2 | 4 | Wieszt Ákos (2014)II. Kerületi Sport | 00:39.38 | 00:00.57 | 149 | |
| 3 | 3 | Csányi Mór Imre (2015)BVSC-Zugló | 00:40.05 | 00:01.24 | 142 | |
| 4 | 2 | Vesztergom Áron (2016)Darnyi Tamás SC | 00:40.74 | 00:01.93 | 135 | |
| 5 | 6 | Conti Noah (2016)MATE - GEAC | 00:40.83 | 00:02.02 | 134 | |
| 6 | 8 | Száz Péter Örs (2016)Ybl Waterpolo Club | 00:40.94 | 00:02.13 | 133 | |
| 7 | 7 | Szeles Dominik Gergely (2017)Kőbánya Sport Club | 00:40.99 | 00:02.18 | 132 | |
| 8 | 1 | Répássy Ákos (2016)BVSC-Zugló | 00:41.35 | 00:02.54 | 129 |