| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 6 | Hoàng Quý Phước (1993)Vietnam | 48.78 | - | 781 | |
50m23.66 100m48.7825.12 +1.46
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| 2 | 2 | Bóna Benedek (2004)BVSC-Zugló | 49.79 | 01.01 | 735 | |
50m24.03 100m49.7925.76 +1.73
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| 3 | 5 | Magda Boldizsár (2005)Parafa Úszó Klub | 50.34 | 01.56 | 711 | |
50m24.47 100m50.3425.87 +1.4
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| 4 | 3 | Nell Olivér (2003)Stamina TKSA | 50.37 | 01.59 | 710 | |
50m24.35 100m50.3726.02 +1.67
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| 5 | 8 | Ngô Đình Chuyền (2001)Vietnam | 51.07 | 02.29 | 681 | |
50m24.50 100m51.0726.57 +2.07
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| 6 | 1 | Marosi Bálint (2005)Szhalombattai VUK SE | 51.63 | 02.85 | 659 | |
50m24.76 100m51.6326.87 +2.11
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| 7 | 4 | Bohus Richárd (1993)BVSC-Zugló | 52.20 | 03.42 | 638 | |
50m24.69 100m52.2027.51 +2.82
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| 8 | 7 | Babik Barna (1999)Vasas Sport Club | 53.14 | 04.36 | 604 | |
50m0 100m53.1453.14 -
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