| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 5 | Vozárik-Illés Márton (2012)Miskolci Sportiskola | 45.54R:0.66 | - | 141 | |
| 2 | 7 | Kőnig Konor Kende (2016)FTC | 47.58R:0.7 | 02.04 | 123 | |
| 3 | 3 | Ivicz Kristóf (2013)Egri Úszó Klub | 47.96R:0.7 | 02.42 | 120 | |
| 4 | 4 | Somogyi Sándor (2015)FTC | 48.37R:0.77 | 02.83 | 117 | |
| 5 | 6 | Urbán Mirkó (2015)FTC | 49.47R:0.7 | 03.93 | 110 | |
| 6 | 1 | Létang-Prónay Martin (2015)Kőbánya Sport Club | 49.98R:0.64 | 04.44 | 106 | |
| 7 | 2 | Fűtő Zsombor (2014)Kőbánya Sport Club | 50.00R:0.78 | 04.46 | 106 | |
| 8 | 8 | Molnár Erik Lehel (2015)FTC | 54.49R:0.69 | 08.95 | 82 |