| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 5 | Hohnstädt Leopold (2012)Bohóchal Egyesület | 42.92R:0.12 | - | 168 | |
| 2 | 4 | Szalai Marcell (2014)FTC | 46.15R:0.69 | 03.23 | 135 | |
| 3 | 9 | Fehér Illés (2015)Gigászok SE | 46.47R:0.54 | 03.55 | 132 | |
| 4 | 2 | Somogyi Sándor (2015)FTC | 49.11R:0.87 | 06.19 | 112 | |
| 5 | 3 | Csajági Dániel (2014)Iron Swim SE | 49.17R:0.77 | 06.25 | 112 | |
| 6 | 7 | Molnár Erik Lehel (2015)FTC | 50.59R:0.62 | 07.67 | 102 | |
| 7 | 6 | Urbán Mirkó (2015)FTC | 50.65R:0.7 | 07.73 | 102 | |
| 8 | 8 | Dobák Milán Kolen (2014)A Jövő SC | 52.80R:0.98 | 09.88 | 90 | |
| 9 | 0 | Vig Dominik Bence (2011)Csepeli Öttusa Vizis | 54.13 | 11.21 | 84 | |
| - | 1 | Stump Ottó (2012)Csepeli Öttusa Vizis | DNS |