| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 6 | Holló Balázs (1999)BVSC-Zugló | 53.94 | - | 708 | |
50m25.58 100m53.9428.36 +2.78
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| 2 | 5 | Hoàng Quý Phước (1993)Vietnam | 54.34 | 00.40 | 692 | |
50m25.74 100m54.3428.60 +2.86
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| 3 | 3 | Hồ Nguyễn Duy Khoa (2005)Vietnam | 55.74 | 01.80 | 641 | |
50m26.11 100m55.7429.63 +3.52
| ||||||
| 4 | 7 | Ngô Đình Chuyền (2001)Vietnam | 56.09 | 02.15 | 629 | |
50m26.36 100m56.0929.73 +3.37
| ||||||
| 5 | 4 | Magda Boldizsár (2005)Parafa Úszó Klub | 56.28 | 02.34 | 623 | |
50m26.88 100m56.2829.40 +2.52
| ||||||
| 6 | 2 | Székely Áron (2004)BVSC-Zugló | 56.79 | 02.85 | 606 | |
50m26.76 100m56.7930.03 +3.27
| ||||||
| 7 | 1 | Mai Tran Tijan Anh (2005)Vietnam | 58.09 | 04.15 | 567 | |
50m27.32 100m58.0930.77 +3.45
| ||||||
| 8 | 8 | Trần Hưng Nguyên (2003)Vietnam | 59.97 | 06.03 | 515 | |
50m28.22 100m59.9731.75 +3.53
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