| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 3 | Samil Haziq (2001)Aqua Development | 00:30.86R:0.55 | - | 444 | |
| 2 | 4 | Ömböli Zalán (2015)Szentes Városi Úszó Club | 00:44.02 | 00:13.16 | 153 | |
| 3 | 1 | Kémenes Szabolcs András (2014)Tempo-Aqua Sportegye | 00:45.47R:0.72 | 00:14.61 | 138 | |
| 4 | 6 | Ekler Bálint Bogdán (2015)Darnyi Tamás SC | 00:52.14R:0.64 | 00:21.28 | 92 | |
| 5 | 5 | Tószegi Marcell (2016)Római Sport Egyesüle | 00:52.42R:0.62 | 00:21.56 | 90 | |
| 6 | 2 | Ács Vilmos (2016)Darnyi Tamás SC | 00:54.42R:0.8 | 00:23.56 | 81 | |
| 7 | 7 | Balogh Boldizsár (2016)Kőbánya Sport Club | 00:54.93R:0.79 | 00:24.07 | 78 |