| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 5 | Trencsényi Zsombor (2015)Létavértes | 49.55 | - | 143 | |
| 2 | 4 | Petőfi Bulcsú (2015)Tiszakécskei Vízis | 50.28R:0.72 | 00.73 | 137 | |
| 3 | 3 | Ungureanu Flavius (2015)Aquasport Temesvár | 50.45 | 00.90 | 136 | |
| 4 | 2 | Nagy Bence Mátyás (2013)Békéscsabai EUK | 50.63 | 01.08 | 134 | |
| 5 | 6 | Zsarkó Botond (2015)NICS-HSÚVC | 52.04 | 02.49 | 123 | |
| 6 | 7 | Büki Norbert János (2016)FTC | 55.07 | 05.52 | 104 | |
| 7 | 1 | Paku Zalán (2016)NICS-HSÚVC | 55.39 | 05.84 | 102 | |
| 8 | 9 | Tanatcu Deian (2013)Murry San Arad | 56.15 | 06.60 | 98 | |
| 9 | 8 | Acsai János (2016)NICS-HSÚVC | 56.19 | 06.64 | 98 | |
| 10 | 0 | Stanciu Luca (2016)Gloria Arad | 58.55 | 09.00 | 87 |