| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 6 | Tóth Bence Tamás (2015)KESI | 00:42.52 | - | 169 | |
| 2 | 3 | Bardar Rares (2014)CSM Arad | 00:45.33R:0.68 | 00:02.81 | 140 | |
| 3 | 8 | Török Levente (2016)NICS-HSÚVC | 00:45.43R:0.81 | 00:02.91 | 139 | |
| 4 | 4 | Tapuc Rares (2014)Csíkszeredai VSK | 00:45.51R:0.79 | 00:02.99 | 138 | |
| 5 | 2 | Izsák Máté (2013)Csíkszeredai VSK | 00:45.77R:0.8 | 00:03.25 | 136 | |
| 6 | 7 | Kis Adrián (2014)SZVUK (régi) | 00:46.73R:0.76 | 00:04.21 | 127 | |
| 7 | 1 | Kovács Patrik (2015)KESI | 00:46.87R:0.67 | 00:04.35 | 126 | |
| 8 | 9 | Vendlóczki Károly Richárd (2016)Four Diamonds SE | 00:47.01R:0.69 | 00:04.49 | 125 | |
| 9 | 5 | Király Patrik (2012)KKH ÚGYE | 00:47.03R:0.76 | 00:04.51 | 125 | |
| 10 | 0 | Curpás Dominik (2015)Hód Úszó SE | 00:49.49R:0.78 | 00:06.97 | 107 |