| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Berecz Kristóf (2010)NYSC | 39.96R:0.78 | - | 143 | |
| 2 | 6 | Nicoreac Rares (2013)CS SEINI | 41.30R:0.69 | 01.34 | 129 | |
| 3 | 3 | Takács János (2013)NYSC | 41.85 | 01.89 | 124 | |
| 4 | 0 | Gránicz Kornél (2014)INVICTUS ÚszóViz.Kft | 41.98 | 02.02 | 123 | |
| 5 | 5 | Papp Marcell (2013)NYSC | 42.77 | 02.81 | 116 | |
| 6 | 7 | Kakuk Áron (2015)Egri Úszó Klub SE | 45.36 | 05.40 | 97 | |
| 7 | 1 | Filip Rares (2012)CS SEINI | 46.74R:0.7 | 06.78 | 89 | |
| 8 | 2 | Morar David (2012)CS SEINI | 48.74R:0.76 | 08.78 | 78 | |
| 9 | 9 | Kálya Áron (2015)NYSC | 50.17 | 10.21 | 72 | |
| 10 | 8 | Kassai Sasha (2014)CS SEINI | 50.31 | 10.35 | 71 |