| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 5 | Létang-Prónay Martin (2015)Kőbánya Sport Club | 00:43.75 | - | 208 | |
| 2 | 4 | Méhes Márk (2015)Váci Vízmű SE | 00:44.13 | 00:00.38 | 203 | |
| 3 | 3 | Dmitrenko Nikita (2015)Bohóchal | 00:44.33 | 00:00.58 | 200 | |
| 4 | 6 | Molnár-Szalai András Béla (2015)Budapesti Honvéd SE | 00:46.51 | 00:02.76 | 173 | |
| 5 | 2 | Jasper Mihály (2015)Bálinti Úszó Egyes. | 00:46.93 | 00:03.18 | 169 | |
| 6 | 8 | Juhász-Hudy Marcell (2015)FTC | 00:47.67 | 00:03.92 | 161 | |
| 7 | 1 | Zsidai Dániel (2016)FTC | 00:48.42 | 00:04.67 | 153 | |
| 8 | 0 | Büki Norbert János (2016)BVSC-Zugló | 00:48.44 | 00:04.69 | 153 | |
| 9 | 7 | Tordai Dániel (2017)Kőbánya Sport Club | 00:49.17 | 00:05.42 | 146 | |
| 10 | 9 | Legény Bence (2015)Kőbánya Sport Club | 00:50.69 | 00:06.94 | 134 |