| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 5 | Phạm Thanh Bảo (2001)Vietnam | 01:02.27 | - | 762 | |
50m29.89 100m01:02.2732.38 +2.49
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| 2 | 4 | Horváth Dávid (1996)Kőbánya Sport Club | 01:03.53 | 01.26 | 717 | |
50m29.43 100m01:03.5334.10 +4.67
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| 3 | 7 | Eszes János Márk (2006)Újpesti Torna Egylet | 01:04.65 | 02.38 | 681 | |
50m30.60 100m01:04.6534.05 +3.45
| ||||||
| 4 | 2 | Sámóczi Milán (2005)Kőbánya Sport Club | 01:05.89 | 03.62 | 643 | |
50m30.65 100m01:05.8935.24 +4.59
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| 5 | 3 | Török Dominik Márk (2002)FTC | 01:06.51 | 04.24 | 625 | |
50m31.38 100m01:06.5135.13 +3.75
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| 6 | 8 | Nguyễn Hữu Kim Sơn (2002)Vietnam | 01:08.17 | 05.90 | 580 | |
50m32.20 100m01:08.1735.97 +3.77
| ||||||
| 7 | 1 | Trần Hưng Nguyên (2003)Vietnam | 01:08.19 | 05.92 | 580 | |
50m32.03 100m01:08.1936.16 +4.13
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| - | 6 | Petrikovits Olivér (1997)Vasas Sport Club | DNS | |||