| RK | Name | H/L | Time | Gap | Q |
|---|---|---|---|---|---|
| 1 | Szabó Szebasztián (1996)UNI Győri Úszó Sportegy. | 48.22 98.548% | - | A4 | |
| 2 | Márton Richárd (1999)Budapesti Honvéd SE | 48.26 99.437% | 00.04 | A5 | |
| 3 | HEIKO GIGLER HEIKO (1996)SV SPITTAL | 48.37 97.238% | 00.15 | A3 | |
| 4 | Németh Nándor (1999)FTC | 48.47 94.813% | 00.25 | A6 | |
| 5 | Jászó Ádám (2002)Pécsi Sportiskola | 48.59 98.113% | 00.37 | A2 | |
| 6 | Magda Boldizsár (2005)BVSC-Zugló | 48.75 98.691% | 00.53 | A7 | |
| 7 | Telegdy Ádám (1995)Kőbánya Sport Club | 49.33 103.312% | 01.11 | A1 | |
| 8 | Kukhalasvili Luka (2002)Stipendium Hungaricum | 49.60 105.181% | 01.38 | A8 | |
| 9 | Deák Gergely (2007)A Jövő SC | 49.69 99.576% | 01.47 | B4 | |
| 10 | Opatril Leon (2003)Team Austria | 49.75 96.591% | 01.53 | B5 | |
| 11 | Pózvai Olivér (2005)UNI Győri Úszó Sportegy. | 49.77 100.955% | 01.55 | B3 | |
| 12 | Pápai Olivér (2009)UNI Győri Úszó Sportegy. | 49.97 101.343% | 01.75 | B6 | |
| 13 | Bagi Zoltán (2007)BVSC-Zugló | 50.05 100.339% | 01.83 | B2 | |
| 14 | Mozsárik Levente (2006)BÁCSVÍZ KVSC | 50.20 99.880% | 01.98 | B7 | |
| 15 | Hosszú Máté (2006)UNI Győri Úszó Sportegy. | 50.22 100.986% | 02.00 | B1 | |
| 16 | Kaiser Dominik (2007)Budapesti Honvéd SE | 50.31 100.632% | 02.09 | B8 | |
| 17 | Papp Sebestyén (2008)Újpesti Torna Egylet | 50.46 98.837% | 02.24 | T1 | |
| 18 | Hartmann Máté (2005)Pécsi Sportiskola | 50.78 101.703% | 02.56 | VL | |
| 19 | Takács Dominik Robertó (2007)UNI Győri Úszó Sportegy. | 50.84 100.509% | 02.62 | T2 | |
| 20 | Poteczin Dániel (2006)Érdi Vízisport Kft | 50.93 101.831% | 02.71 | VL | |
| 21 | Takács Botond (2008)FTC | 51.04 102.651% | 02.82 | ||
| 22 | Szűcs Ádám Zoltán (2004)FTC | 51.13 102.125% | 02.91 | ||
| 23 | Kennedy Valér Huba (2005)UNI Győri Úszó Sportegy. | 51.16 101.634% | 02.94 | ||
| 24 | Mukalazi Tendo (2002)Stipendium Hungaricum | 51.69 97.947% | 03.47 | ||
| 25 | Nagy Nándor (2006)Románia | 51.82 97.223% | 03.60 | ||
| 26 | Lozer Kaheem Omaro (2004)Jamaica | 51.89 103.009% | 03.67 | ||
| 27 | Dominiák Ferenc (2004)BVSC-Zugló | 52.04 102.674% | 03.82 | ||
| 28 | Kreisz Bálint (2009)Debreceni Sportc. SI | 52.17 100.629% | 03.95 | ||
| 29 | Amen Jelassio Allah (2002)Tunézia | 52.23 102.374% | 04.01 | ||
| 29 | Grandpierre Krisztián (2007)FTC | 52.23 100.967% | 04.01 | ||
| 31 | Lengyeltóti Bence (2001)Kaposvári Adorján | 52.30 102.788% | 04.08 | ||
| 32 | Vince Marcell (2007)Kaposvári Adorján | 52.31 100.627% | 04.09 | ||
| 33 | Kakuk Koppány Zéta (2008)Kaposvári Sportközpont és Sportiskola | 52.56 93.861% | 04.34 | ||
| 34 | Nagy Csongor Benedek (2006)Stamina TKSA | 52.63 100.341% | 04.41 | ||
| 35 | Giczi Mátyás Zsolt (2003)UNI Győri Úszó Sportegy. | 52.97 95.254% | 04.75 | ||
| 36 | Torma Benjamin (2004)Vasas Sport Club | 53.13 98.374% | 04.91 | ||
| 37 | Simon Botond (2005)Vasas Sport Club | 53.18 101.042% | 04.96 | ||
| 38 | Hussain Mohamed Aan (2004)Aqua Development | 53.45 102.623% | 05.23 | ||
| 39 | Fábián Lázár (2008)Újpesti Torna Egylet | 53.49 100.871% | 05.27 | ||
| 40 | Kaumi Tendo Joel (2005)Stipendium Hungaricum | 53.62 101.070% | 05.40 | ||
| 41 | Jánosi István Márk (2005)Érdi Vízisport Kft | 53.94 100.590% | 05.72 | ||
| 42 | Sudár Norbert (2009)Újpesti Torna Egylet | 53.99 101.550% | 05.77 | ||
| 43 | Szeitz Benedek (2008)Bálinti Úszó Egyes. | 54.45 100.366% | 06.23 | ||
| 44 | Törő Ármin (2009)Budapesti Honvéd SE | 54.56 99.798% | 06.34 | ||
| 45 | Ozsvárt Gábor (2009)Parafa Úszó Klub | 54.64 100.237% | 06.42 | ||
| 46 | Samil Haziq (2001)Aqua Development | 54.65 99.374% | 06.43 | ||
| 47 | Koroncai Mátyás (2008)BVSC-Zugló | 54.66 99.817% | 06.44 | ||
| 48 | Matyó Márton (2004)Bálinti Úszó Egyes. | 54.81 97.551% | 06.59 | ||
| 49 | Csaba György (2008)BVSC-Zugló | 55.69 97.910% | 07.47 | ||
| 50 | Ibrahim Yousif (1998)Stipendium Hungaricum | 56.58 97.052% | 08.36 | ||
| 51 | Banda Asher (2005)Malawi | 01:00.47 95.741% | 12.25 | ||