| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 1 | Barna Bence (2016)Iron Swim SE | 00:39.96 | - | 123 | |
| 2 | 2 | Fleischer Áron Zoltán (2014)Százhalombattai VUKSE | 00:42.21 | 00:02.25 | 104 | |
| 3 | 3 | Mészáros Zétény (2016)Százhalombattai VUKSE | 00:49.00 | 00:09.04 | 66 | |
| 4 | 6 | Takács Simon Máté (2017)Budaörsi Sport Club | 00:49.49 | 00:09.53 | 65 | |
| 5 | 4 | Németh Magor (2017)Vitál Sport | 00:50.10 | 00:10.14 | 62 | |
| 6 | 7 | Csernus Zoltán (2018)KESI | 00:52.90 | 00:12.94 | 53 | |
| 7 | 5 | Kemény Kázmér (2016)Százhalombattai VUKSE | 00:53.45 | 00:13.49 | 51 | |
| 8 | 8 | Vertényi Vince (2017)JMSE | 00:58.04 | 00:18.08 | 40 |