| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Kutasi Máté (1998)FTC | 01:02.12 | - | 707 | |
50m29.53 100m01:02.1232.59 +3.06
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| 2 | 5 | Horváth Álmos Levente (2004)Szekszárdi Sportközp | 01:02.42 | 00.30 | 707 | |
50m29.53 100m01:02.4232.89 +3.36
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| 3 | 3 | Le Thanh DDoc (2004)Vietnam | 01:04.53 | 02.41 | 639 | |
50m30.84 100m01:04.5333.69 +2.85
| ||||||
| 4 | 2 | Börcsök Dániel (2002)Stamina TKSA | 01:04.77 | 02.65 | 623 | |
50m31.17 100m01:04.7733.60 +2.43
| ||||||
| 5 | 7 | Nguyễn Hữu Kim Sơn (2002)Vietnam | 01:04.85 | 02.73 | 630 | |
50m31.75 100m01:04.8533.10 +1.35
| ||||||
| 6 | 8 | Szabó Patrik (2005)Mohácsi Torna Egylet | 01:05.40 | 03.28 | 605 | |
50m30.45 100m01:05.4034.95 +4.5
| ||||||
| 7 | 6 | Tumbász Noel (2005)Vasas Sport Club | 01:07.18 | 05.06 | 558 | |
50m31.51 100m01:07.1835.67 +4.16
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| 8 | 1 | Trần Hưng Nguyên (2003)Vietnam | 01:09.27 | 07.15 | 517 | |
50m31.94 100m01:09.2737.33 +5.39
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