| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Trencsényi Zsombor (2015)Debreceni Sportc. SI | 00:39.84 | - | 276 | |
| 2 | 6 | Molnár-Szalai András Béla (2015)Budapesti Honvéd SE | 00:42.21 | 00:02.37 | 232 | |
| 3 | 5 | Dmitrenko Nikita (2015)Bohóchal | 00:42.76 | 00:02.92 | 223 | |
| 4 | 3 | Márton Patrik (2015)Miskolci Sportiskola | 00:43.67 | 00:03.83 | 209 | |
| 5 | 2 | Poprádi Máté Marcell (2015)Gömöri Úszó Klub Se | 00:44.58 | 00:04.74 | 197 | |
| 6 | 7 | Végh Tamás (2015)Debreceni Sportc. SI | 00:45.59 | 00:05.75 | 184 | |
| 7 | 8 | Szebeni Patrik (2015)Újpesti Torna Egylet | 00:45.68 | 00:05.84 | 183 | |
| 8 | 1 | Horváth Bence (2017)Békési Úszó Klub E. | 00:46.62 | 00:06.78 | 172 | |
| 9 | 9 | Polónyi Boldizsár (2016)KSK Delfin Klub | 00:49.08 | 00:09.24 | 147 | |
| 10 | 0 | Magyar Zsombor (2016)Debreceni Aquasport | 00:51.77 | 00:11.93 | 125 |