| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 3 | Tordai Dániel (2017)Kőbánya Sport Club | 51.11R:0.58 | - | 130 | |
| 2 | 7 | Zsidai Dániel (2016)FTC | 52.07R:0.73 | 00.96 | 123 | |
| 3 | 5 | Kőnig Konor Kende (2016)FTC | 53.07R:0.75 | 01.96 | 116 | |
| 4 | 4 | Dilingai Nimród (2013)Budapesti Honvéd Sportegyesület | 53.46R:0.83 | 02.35 | 114 | |
| 5 | 8 | Gertner Milán (2014)Városi Sportegyesület Dunakeszi | 53.77 | 02.66 | 112 | |
| 6 | 6 | Kardos Tibor Kristóf (2015)FTC | 54.58R:0.78 | 03.47 | 107 | |
| 7 | 9 | Molnár-Szalai András Béla (2015)Budapesti Honvéd Sportegyesület | 55.30 | 04.19 | 103 | |
| 8 | 2 | Gelegonya Levente (2016)Budapesti Honvéd Sportegyesület | 55.45R:0.47 | 04.34 | 102 | |
| 9 | 0 | Varga Márton Patrik (2016)Budapesti Honvéd Sportegyesület | 57.62R:0.87 | 06.51 | 91 | |
| 10 | 1 | Tanczikó Benedek (2017)Kőbánya Sport Club | 01:12.83 | 21.72 | 45 |