| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 6 | Hosnyánszky Zalán (2013)BVSC-Zugló | 43.99 | - | 129 | |
| 2 | 4 | Ebinger Zsombor (2015)Kőbánya Sport Club | 44.09 | 00.10 | 128 | |
| 3 | 7 | Fűtő Zsombor (2014)Kőbánya Sport Club | 45.27 | 01.28 | 119 | |
| 4 | 5 | Schnábel Kevin (2014)Kecskeméti Junior Sport Nonprofit KFT. | 48.27 | 04.28 | 98 | |
| 5 | 3 | Valkai Bátor (2014)Monori Sport Egyes. | 48.42 | 04.43 | 97 | |
| 6 | 2 | Deák Kristóf (2014)FTC | 50.87 | 06.88 | 83 | |
| 7 | 1 | Legény Bence (2015)Kőbánya Sport Club | 53.37 | 09.38 | 72 | |
| 8 | 8 | Máthé Csongor (2014)Kőbánya Sport Club | 01:04.77 | 20.78 | 40 |