| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 3 | Jászó Ádám (2002)Pécsi Sportiskola | 00:51.46 | - | 828 | |
50m00:25.39 R:0.67 100m00:51.4600:26.07 -
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| 2 | 5 | Kovács Benedek Bendegúz (1998)FTC | 00:52.39 | 00:00.93 | 785 | |
50m00:25.36 R:0.63 100m00:52.3900:27.03 -
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| 3 | 7 | Magda Boldizsár (2005)BVSC-Zugló | 00:52.66 | 00:01.20 | 773 | |
50m00:25.68 R:0.57 100m00:52.6600:26.98 -
| ||||||
| 4 | 4 | Rasovszky Kristóf (1997)Balaton ÚK Veszprém | 00:52.97 | 00:01.51 | 759 | |
50m00:26.00 R:0.72 100m00:52.9700:26.97 -
| ||||||
| 5 | 2 | Telegdy Ádám (1995)Kőbánya Sport Club | 00:53.11 | 00:01.65 | 753 | |
50m00:26.11 R:0.68 100m00:53.1100:27.00 -
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| 6 | 6 | Ahmad Safiya (2006)Lebanese Swimming Federation | 00:53.99 | 00:02.53 | 717 | |
50m00:26.16 R:0.58 100m00:53.9900:27.83 -
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| 7 | 1 | Ángyán Máté (2005)Érdi Vízisport Kft | 00:54.13 | 00:02.67 | 711 | |
50m00:26.43 R:0.6 100m00:54.1300:27.70 -
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| 8 | 8 | Ardjoune Abdellah (2001)Stipendium Hungaricum | 00:54.41 | 00:02.95 | 700 | |
50m00:26.31 R:0.59 100m00:54.4100:28.10 -
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