| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 8 | Kónya Kristóf Noé (2015)BVSC-Zugló | 45.44R:0.82 | - | 139 | |
| 2 | 4 | Nyári Kristóf (2014)Gigászok SE | 45.64R:0.8 | 00.20 | 137 | |
| 3 | 3 | Dósa András (2013)Érdi Vízisport Kft | 45.69R:0.82 | 00.25 | 136 | |
| 4 | 2 | Boros Teodor (2015)BVSC-Zugló | 46.93R:0.97 | 01.49 | 126 | |
| 5 | 6 | Molnár Erik Lehel (2015)FTC | 47.63R:0.86 | 02.19 | 120 | |
| 6 | 1 | Ónodi Dominik (2014)Miskolci Sportiskola | 48.28R:0.74 | 02.84 | 116 | |
| 7 | 7 | Zsidai Dániel (2016)FTC | 49.58R:0.74 | 04.14 | 107 | |
| - | 5 | Gyuricza Zsombor (2014)Budapesti Honvéd SE | DNS |