| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 5 | Jászó Ádám (2002)Pécsi Sport Nonprof. | 00:51.60 | - | 821 | |
50m00:25.41 R:0.65 100m00:51.6000:26.19 -
| ||||||
| 2 | 2 | Németh Nándor (1999)BVSC-Zugló | 00:51.71 | 00:00.11 | 816 | |
50m00:25.10 R:0.51 100m00:51.7100:26.61 -
| ||||||
| 3 | 3 | Kovács Benedek Bendegúz (1998)BVSC-Zugló | 00:51.78 | 00:00.18 | 813 | |
50m00:25.30 R:0.56 100m00:51.7800:26.48 -
| ||||||
| 4 | 4 | Rasovszky Kristóf (1997)Balaton ÚK Veszprém | 00:52.35 | 00:00.75 | 786 | |
50m00:25.82 R:0.67 100m00:52.3500:26.53 -
| ||||||
| 5 | 7 | Telegdy Ádám (1995)Kőbánya Sport Club | 00:52.48 | 00:00.88 | 781 | |
50m00:25.60 R:0.63 100m00:52.4800:26.88 -
| ||||||
| 6 | 6 | Balogh Levente (2005)Kőbánya Sport Club | 00:53.03 | 00:01.43 | 756 | |
50m00:25.76 R:0.53 100m00:53.0300:27.27 -
| ||||||
| 7 | 1 | Magda Boldizsár (2005)BVSC-Zugló | 00:53.65 | 00:02.05 | 731 | |
50m00:25.84 R:0.53 100m00:53.6500:27.81 -
| ||||||
| 8 | 8 | Marosi Bálint (2005)Szhalombattai VUK SE | 00:54.11 | 00:02.51 | 712 | |
50m00:25.99 R:0.57 100m00:54.1100:28.12 -
| ||||||