| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 4 | Rostás Richárd (2017)Hód Úszó SE | 00:51.38R:0.66 | - | 96 | |
| 2 | 6 | Kovács Milán (2016)KESI | 00:51.95 | 00:00.57 | 93 | |
| 3 | 0 | Szekely Gellert (2014)ISK Marosvásárhely | 00:52.74R:0.68 | 00:01.36 | 89 | |
| 4 | 2 | Siági Dominik (2015)Szegedi Úszó Egylet | 00:52.91R:0.51 | 00:01.53 | 88 | |
| 5 | 3 | Bujdoso Erik (2014)CSM Arad | 00:53.46R:0.76 | 00:02.08 | 85 | |
| 6 | 7 | Tapaszto David (2014)CSM Arad | 00:54.43R:0.92 | 00:03.05 | 80 | |
| 7 | 9 | Illikmann Márk (2015)NICS-HSÚVC | 00:55.31R:0.64 | 00:03.93 | 77 | |
| 8 | 1 | Fazekas Benett Gábor (2016)KESI | 00:57.48R:0.71 | 00:06.10 | 68 | |
| 9 | 8 | Becia Matei (2016)Aquasport Timisoara | 01:01.64R:0.6 | 00:10.26 | 55 | |
| - | 5 | Olasz Gergő (2016)Hód Úszó SE | DNS |