| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Nagyházi Bence (2012)A Jövő SC FCSM | 00:56.62 | - | 550 | |
50m00:27.50 R:0.77 100m00:56.6200:29.12 -
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| 2 | 5 | Kovács-Pimper Gergő (2012)Balaton ÚK Veszprém | 00:57.96 | 00:01.34 | 513 | |
50m00:27.89 R:0.69 100m00:57.9600:30.07 -
| ||||||
| 2 | 3 | Kesztler Gábor György (2012)Százhalombattai VUKSE | 00:57.96 | 00:01.34 | 513 | |
50m00:28.04 R:0.73 100m00:57.9600:29.92 -
| ||||||
| 4 | 2 | Kohán Benjamin (2012)NICS-HSÚVC | 00:58.64 | 00:02.02 | 495 | |
50m00:28.49 R:0.69 100m00:58.6400:30.15 -
| ||||||
| 5 | 7 | Hegede Balázs Soma (2012)Iron Swim SE | 01:00.10 | 00:03.48 | 460 | |
50m00:28.63 R:0.7 100m01:00.1000:31.47 -
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| 6 | 8 | Piros Patrik (2012)Debreceni Sportc. SI | 01:00.17 | 00:03.55 | 458 | |
50m00:29.09 R:0.64 100m01:00.1700:31.08 -
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| 7 | 6 | Komáromy Vilmos István (2012)Szentes Városi Úszó Club | 01:00.64 | 00:04.02 | 447 | |
50m00:29.26 R:0.73 100m01:00.6400:31.38 -
| ||||||
| 8 | 1 | Sallai Áron (2012)Budapesti Honvéd SE | 01:00.73 | 00:04.11 | 446 | |
50m00:28.89 R:0.66 100m01:00.7300:31.84 -
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