| (F1) | |||||
| RK | Name | H/L | Time | Gap | Q |
|---|---|---|---|---|---|
| 1 | Hoàng Quý Phước (1993)Vietnam | 00:48.78 102.440% | - | ||
| 2 | Bóna Benedek (2004)BVSC-Zugló | 00:49.79 100.519% | 00:01.01 | ||
| 3 | Magda Boldizsár (2005)Parafa Úszó Klub | 00:50.34 98.056% | 00:01.56 | ||
| 4 | Nell Olivér (2003)Stamina TKSA | 00:50.37 99.038% | 00:01.59 | ||
| 5 | Ngô Đình Chuyền (2001)Vietnam | 00:51.07 99.863% | 00:02.29 | ||
| 6 | Marosi Bálint (2005)Szhalombattai VUK SE | 00:51.63 97.722% | 00:02.85 | ||
| 7 | Kovács Attila (2004)BVSC-Zugló | 00:51.76 - | 00:02.98 | ||
| 8 | Varga Máté (2004)Lőrinc Swim Team | 00:52.05 100.857% | 00:03.27 | ||
| 9 | Bohus Richárd (1993)BVSC-Zugló | 00:52.20 94.139% | 00:03.42 | ||
| 10 | Csicsáky Péter (2003)BVSC-Zugló | 00:52.39 99.250% | 00:03.61 | ||
| 11 | Szabó Patrik (2005)Mohácsi Torna Egylet | 00:52.76 105.074% | 00:03.98 | ||
| 12 | Babik Barna (1999)Vasas Sport Club | 00:53.14 94.186% | 00:04.36 | ||
| 13 | Hồ Nguyễn Duy Khoa (2005)Vietnam | 00:53.23 97.635% | 00:04.45 | ||
| 14 | Pál Vince (2005)Újpesti Torna Egylet | 00:53.27 102.005% | 00:04.49 | ||
| 15 | Mai Tran Tijan Anh (2005)Vietnam | 00:53.57 97.962% | 00:04.79 | ||
| 16 | Nagy Roland (2003)Darnyi Tamás SC | 00:53.87 108.571% | 00:05.09 | ||
| 17 | Makai Mátyás (2002)Iron Swim SE | 00:54.21 102.465% | 00:05.43 | ||
| 18 | Matyó Márton (2004)Bálinti Úszó Egyes. | 00:54.80 103.249% | 00:06.02 | ||
| 19 | Szentpéteri Márk (2004)BVSC-Zugló | 00:55.52 101.787% | 00:06.74 | ||
| 20 | Lajkó Csanád (2004)Szhalombattai VUK SE | 00:56.25 101.229% | 00:07.47 | ||
| 21 | Dominiák Ferenc (2004)BVSC-Zugló | 00:56.48 100.563% | 00:07.70 | ||
| 22 | Kovács Ákos (2005)Délzalai Vízmű SE | 00:57.56 105.173% | 00:08.78 | ||
| 23 | Kiss Levente (2004)Mohácsi Torna Egylet | 00:58.41 95.323% | 00:09.63 | ||
| - | Székely Áron (2004)BVSC-Zugló | DNS - | |||