| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 6 | Bene Zsombor (2004)Vasas Sport Club | 00:25.50R:0.66 | - | 551 | |
| 2 | 0 | Telek Csaba (2015)Gigászok SE | 00:39.58R:0.98 | 00:14.08 | 147 | |
| 3 | 2 | Szklenár Lázár (2016)Hatvani Úszó Klub SE | 00:42.00R:0.6 | 00:16.50 | 123 | |
| 4 | 7 | Basa Martin (2016)Kis-Pingvin SE | 00:49.89R:0.75 | 00:24.39 | 73 | |
| 5 | 4 | Tanczikó Benedek (2017)Kőbánya Sport Club | 00:50.53 | 00:25.03 | 70 | |
| 6 | 5 | Epress Tihamér (2016)Kőbánya Sport Club | 00:52.52R:0.67 | 00:27.02 | 63 | |
| 7 | 8 | Szász Bence András (2017)FTC | 00:53.87 | 00:28.37 | 58 | |
| 8 | 3 | Kernács Vajk Hunor (2017)FTC | 00:54.60R:0.5 | 00:29.10 | 56 | |
| - | 1 | Lévai Ábel (2017)Kis-Pingvin SE | DSQ |